Dr Browns are fantastic. But yes, cleaning is a pain.
My DTs were full of wind. When they farted at 1 month I was never sure whether it was them or my DH!!
After switching to Dr Browns it all changed and they got a lot less windy.
Changed back to Avent at 4 months - easier to clean and travel with (cant really leave house with Dr Brown as leak everywhere even with the travel cap on).
So would recommend it for a few months - buy the 8oz bottles and dont bother to move to the second stage teat so you dont end up spending too much.