It is clear that the Solidata X2-256 is a very fast drive and has enough capacity to make anyone happy. This is the first time we have seen a drive get so close to Intel's MLC performance to date and that is a good thing for everyone since it should help bring the cost of these uber performing drives down.
When it comes to solid state drives you should do yourself a favor and visit DVNation.com before making your purchasing decision. They provide a lot more information to the consumer about all of the products they sell than any other e-tailer I have visited to date. You can even take that a step further and ask them what product would best fit your data needs.
With that said, the main issue I see with the Solidata X2-256 is price. DVNation currently lists the drive for 1099 USD. The highest capacity Intel MLC drive to date is the 160GB model and although it is just a little faster in most applications there are a few that perform better than the Solidata drives. However, capacity is always a concern for datacenters and the added capacity of the X2-256 over Intel's largest drive will make a real difference when stacking racks of drives.