Glass or Screen ..My opinion
OK I realize as a newbie to the chams site , I risk running into crap ..but here goes , I've survived being of Scottish descent and being a deep Southerner as to add to it , if I can survive 30 yrs of that , I'll make it ..lol
First let me say I have 2 herps and I do have an advantage of education , I have an Associates in Biology and Animal Handling and a Minors Cert in Farm Management + 10 yrs living on a farm surrounded by every beast known to man at one point or another . Gem is a happy , healthy, Australian Bearded Dragon and she is going on almost 5 yrs old now . She was my first real reptile and I was really nervous . Then about another year later I decided to go 1 up a little harder , at least from my POV & I bought Warf , who is my male Veiled Chameleon , who is now almost 4 yrs old . Having them has been an awesome experience . But in its inception , I personally made a point to research the crap out of as best I could the details of the husbandry and keeping of small herps & like ( most ) I would hope, really research , talk, ask questions , and do their best to keep their new friend as comfortable & healthy as possible. So I definitely believe in studying & challenging your self for an " ideal " set up what really comes down to time and aesthetic . I even spent some time asking questions off professional herp keepers , zoos , rescues , etc. And yes I was warned and told of all the dangers of " doing it wrong " . Well, I made the choice to house them both in glass terrariums or modified aquariums and set it up because I was going for a different idea , I wanted mine to look more like the zoo viewing set up and professional. And I can say for me its worked just fine by viewing them , their pics, and their behavior. The screens are on top and vented , ( air flow issue ) they are glass ( nothing for them to get " caught on " on tear a toe or tail lose on, they have even proper lighting ( UV light, basking, and red night light ) w/ no fans running . And in my experience , they have never suffered any ill effects.
Its been my experience that if you choose to do something different than whats normally accepted - you do have to go in knowing that its a risk and watch & study carefully to see if that's going to work for you .or your reptile .
If you notice bad side effects, or a bad reaction to what your doing - obviously your going to have to fix it . But I spent tons of time reading and putting the cash & time into setting up right and I spent many sleepless nights watching & planning carefully . The lighting in a glass set up does have to be just so ..I use sifted sand as my substrate ( no standing water or smell ) and I mist them 2x pd for Gem and 3x pd for Warf and it evaporates just fine and they get plenty of water . Because I have the time ( I work partially at home ) I don't mind cleaning the glass and that's extra time I use to take them out & hang with them anyways . I live in the Sonora Desert ( Phoenix AZ ) and I have never had trouble w/ ventilation or trouble w/ them breathing or keeping their temps right . Alot of it just paying attention . I have an AC in the summer to keep air moving and I turn their lights down in Spring/Summer so don't get too hot. As far as the whole " Reflection " issue goes I have never had them wig out or get freaked when they saw their reflection or injure themselves at seeing themselves , I will say though after 7P at night I do cover the sides of the tanks to keep out house hold light and to keep from being bothered by the TV light & motion..Cause I could see how I would be annoyed at living next to a " constant movie theater going " while I was trying to sleep. The key is in research and doing what is comfortable for 1st the animal and 2nd comfortable for you . If you don't want to put the time and effort & research into housing yours in a glass tank don't do it . If your that worried about your level of experience and how its going to go - don't do it . And if you don't have the cash to fix it fairly quickly if it doesn't seem to be going well for the Lil guy - don't do it. I believe some are better off in screen cages because it does make it easier for a newbie to herp keeping to handle, clean , and to get comfortable with new creature added to the family. Personally I believe that glass set ups look nicer but that just me . Mine have never had any trouble , never been sick , and never reacted badly. But you do have to take the time and decide whats best for you & them and ultimately in the end its up to you . In animals there are caveats to every action so I'd say if your willing to invest the time , attention , real study totally then go ahead w/ glass . If not , then go ahead and by all means use a traditional screen set up . I don't think either 1 over the other makes you a " bad " herp parent ..if you noticed a prob then ignored it that would be bad herp parenting. So anyways , that's my 2 cents . Decide for yourself and try new things but be prepared & educate the crap out of yourself and be sure to plan if you find yourself needing a plan " B ".