Well their controllers were hardly well received; few products use them and generally Samsung and JMicron are very low-performance budget controllers.
I cannot recommend it to anyone, as they still make a pricey SSD. For the same money you better buy an Intel instead.
Intel will likely 'conroe' the SSD market in 2010 Q4 as they release their next-gen 6Gbps controller + 25nm NAND flash. Intel has a partnership with Micron to product high-end NAND memory for SSDs on mass scale.
So, i don't think you should be looking at a Samsung-powered SSD either now or in the future. Sandforce is making a decent competitor to Intel, though. But price per GB is higher and random IOps is not superior to Intel. So you may want to opt for Intel after all. There is too little competition in the SSD controller market right now.