I useda rental medela lactina and then switched to the Purely Yours with no problems. I liked it better because it was cheaper, had 6 bottles instead of 4, and could run on AA batteries if necessary. I got mine 2 years ago on ebay brand new for about $130. I never used the pump in style, so I can't comment on that.
I also got an Avent hand pump as back up or for quick pumping sessions that I didn't want to pull out the big pump while at home. It worked as well, if not better-just couldn't pump both sides at the same time.
Michelle -mom to Katlyn 4/00 , Jake 3/02, and Seth 5/04