My experience with Dr. Brown's BPA free bottles has been positive so far.  They are reasonably priced.  The accessories ( the nipples and dishwasher basket) are also reasonably priced.  I melted part of the bottle in the dishwasher, I am not sure if they sell replacement parts or not.   It doesn't leak while feeding unless you forget to put all of the parts in it. 

 My son is a spitter.  It has not reduced the amount that he spits up like it claims to.   There are a lot of parts, but it is dish washer safe so it is not a big deal to me.  If you wash your bottles by hand, this might be...