I have a 240GB in my desktop. It's beats the crap out of the first SSD I got (64GB Crucial c300).
I also put a 80GB 320 series in my old laptop (Lenovo X61) that my mum now has. That was lovely too. Perfect for Sata II machines.
I use them because they're supposed to deal well with power loss (my main PC is on 247 and we suffer 6 or so power cuts per year) - also ideal for mobile computing obv. Never had any problems with either.