I have two adult rosies. I keep them with the hot spot about 90-92F, and they both eat like pigs. No finickiness here, that's for sure. They're active, frequently out-and-about, never hesitate to feed, all around great keepers. Granted, I haven't had them long, but so far they seem to do well at this temp range. I've been feeding them adult mice, aiming for about a 10-14 day schedule. They're both in the range of 250-300 grams, if I remember right, and seem to do well on this schedule.
My whitewater is good for handling, usually pretty laid back and easy going during handling sessions; my Anza Borrego on the other hand is convinced everything that touches her or moves near her face is FOOD. All you have to do is blow down through the screen top of her enclosure and she'll strike at the movement thinking it must be feeding time. The whitewater has a similar response, but thankfully only when she smells mice... I once had to pry her off a pillow. She missed when she struck at her mouse and got the pillow instead. She held on for dear life, completely convinced the mouse smell was coming from it, and therefore it must be food! So, I guess what I'm trying to say, is they're definitely NOT the finicky like a sand boa. At least, not from my (limited) experience!