My first pump was a Medtronic pump, this was 2005. Medtronic's customer service is marginal at best. I had experienced some malfunctions with the pump, customer service was not helpful at all. I ended up going to the Animas ping.
The Animas ping, I've had a few replacement pumps due to varied issues. Animas customer service and tech suport did what I expencted them to do. They replaced the pump, usually over night. They didn't mess around. Over all, with the Ping, I have no complaints other than a few of them having an issue. One flooded after just 20 minutes while I was swimming in a pool. I get it, sometimes, machines just fail, it's the nature of machines, I suppose.
t:slim. I have NOT used their pump (yet), presently, my insurance does not pay for the t:slim (I have Kaiser). BUT, in talking with Tandem diabetes, they are great to talk to. Even though I am not a customer of theirs, they have no problem answering my questions on the t:slim over multiple phone calls. They call me from time to time to actually check up on me and update me on the (lack of) Kaiser coverage for the t:slim presently. They seems to be "the good guys" in the pump business.
Alas, it is time for a NEW pump, 6+ years in to the Ping. Kaiser offered me a choice between a Medtronic pump or another Ping, while I requested the t:slim, it was not on the "menu", so I selected another Ping with the upgrade to the Vibe when it is released to the US by the FDA.
The general concensus amongst t:slim users seem to be quite positive, I have not heard anyone say they disliked it. The only issues I am presently aware of are clogging past day two using Apidra as the t:slim is a 300u cartidge.
My Ping experiences are that I honestly can't gripe too much, Animas jumps theough the hoops when I present an issue. It is a 200u cartridge and delivers my Apdira without issue. Occlusions are when I've placed my infusion sets in scar tissue. Eh, it happens.
I understand that the t:slim is the latest and greatest pump on the market. Maybe one day, the kind folks at Tandem would at least let me take a t:slim for a 6 week test drive and use me as an example to bully Kaiser into covering it. I'd be more than willing to write a review from unboxing to a 6 week drive article.
For Suze, Since you're in Canada, I'm sorry that the t:slim is not one of the choices you have, so, take it from another "Pinger", you can pretty well feel safe with it.