Definitely a personal preference, yours and the birdie's. I love the shower perch. We have two different ones, based on what my guys seem to like. My ekkie are YNA LOVE them. I stick them to the far wall from the shower head, and they get the mist that bounces off my shoulders/back. Never direct spray. My grey... has made it clear that it's a no. Tried introducing him to it slowly, and he sort of tolerated it, but got mad and resorted to plucking his whole chest. (He's a 50 year old, life long plucker, but made good progress with that after coming to me) We won't be doing that again. He has a huge water bowl, and finally decided it's a good thing to jump in for a bath every couple days. Thank goodness!
Now, the shower perches, I've only once had an issue with falling, and it was because my zon was picking at the suction cups. I caught her on the way down. Just have to make sure the suction cups and the wall are good and clean before putting it up. I do that every time, and I take them down after the shower.