Crucial reportedly has better support than that. My M4 would crash after 21 minutes (exactly-ish) over a year continuous service (100+GB/day), the latest firmware fixed the problem and increased speeds. The USB firmware updater was a god send compared to the vile vile hoops I had to jump through to upgrade my OCZ drive.

I currently have an Samsung 840 1TB and has been rock solid, it replaced a 250GB intel 320. Afaik Samsung is the only manufacturer that owns the whole supply chain, flash + controller.