I rented a Medela Symphony from the hospital at first, too bad those are not really available...I found the parts annoying to clean though. 8 parts every time you pump. So all Medela double electrics would probably have that.
I have a Lucina Melodi Advanced, I have never heard of it but it was the hospital grade pump available to me through my insurance for free, so no complaints. It is slower than the Medela, but by the time I got it LO was already home and I have not used it for major pumping. Much easier to clean though!