Quoting PurpleBama582:" The Avent bottle sanitizer is great for that. It goes in the microwave and you can sterilize a lot at one time."
Quoting Hikaru Katsu:" i hear they suck and leak so i never tried them. i use the platex ventaire and haven't had any problems with gas or the nipple leaking. "
Quoting LittleTiger:" Nope, no leaking what so ever if you put it together right. If you forget the adapter ring then of course ... [snip!] ... will leak... Its super easy to use and its a great shape. LO is a few days of 4 months old and he loves to hold his own bottle."