Not to thread crap, but check the myriad of absolutely unacceptable chat transcripts folks have posted regarding origin.
I've been using steam for well over 10 years and they have always been great, the one time i actually had to contact support it was smooth as could be.
Sorry to burst your bubble, but Origin is just as stable as steam is these days, and, as for you having "smooth" support with steam, you got lucky.
I have contacted steam many, many times over the years, and "smooth" isn't how I would describe the experience. Heck, not even close.
For what it is worth, I also had to contact origin's support, and that went OK after then 2nd try.
For those of you on the fence about this (and the other free games Origin gives out monthly), I would say, go ahead and install Origin, and decide for yourself.
You can always uninstall it if you want, but, I highly doubt that you will.