Automatic Breast Pumps

Anyone have experiences with these products? I'm seeing both show up on best-rated lists, and reviews say that replacement parts are easy to get ahold of. I will be pumping at work and am hoping for something that's portable, quick, and decent to clean. I'm also liking the fact that I can apparently attach the feeding bottles or milk bags to the Lansinoh pump. Not sure if I can attach the milk storage bags with Medela? I've seen good things about Spectra S2 as well, but also saw reviews mentioning that parts weren't as easy to get in stores and that the brand had collection bottles, not necessarily feeding bottles. If I'm wrong or confused please let me know, this is all very new. Any and all opinions are appreciated.