I love my MM 722, and you would have to pry it from my cold dead hands! I loved the integration with BG machine, and integrated CGMS. The carelink website allows you to upload your pump readings, settings, and any BG sensor data to the web for detailed analysis reports, and the option for your doctors office to be able to look at the same data and make recommendation, without you having to go into the office! One complaint on the carelink, there are no USB drivers for Mac, or Windows 7. They are working on Win 7 drivers but only 32 bit at this time, with 64 bit drivers coming later. This is a major bummer for me as I have a 64 bit Win 7 laptop that I just purchased, and am unable to currently upload my data.
Unlike some, I have found Medtronics customer support easy to deal with, and they took care of all of my questions and needs in a timely fashion. Having worked in a very customer oriented business for 10 years I have some patience for customer service, but I do not have a lot of patience. I have called them at weird hours, 3 am and was helped by a cheerful person who answered all of my questions fully.
I know some say the MM sales reps are pushy, but that is their job. If they are not selling pumps and equipment they are not doing their job right. I have had 40+ vendor reps call on me and they are all this way.
I would suggest putting a spreadsheet together with all of the pros and cons of each pump you are considering, and rank the importance of certain features. If you like integrated BG, more basal rates, special pump spacific features, note them and rank them. This should help you figure out what pumps have the features that are important to you. Also see if each company will give you a loaner demo pump to see how the user interface (UI) works for you. Like cell phones, different pumps have different UI, and maybe some features take more button pushes, ect that will become annoying over time.