I've not had an MSI GPU, but their Mobos are GREAT lately. Haven't had any problems with several different boards from them. Their afterburner tool for GPU's is also quite good.
I have had (and have) several MSI products, both GPU and CPU, and none of them has failed. Their support is setup similar to Sapphire where the trouble shooting is done through their forum with the moderators. What I have seen there looks alright.