Kingston's HyperX SSD really deserves the prominent name, originating from their high-end system RAM. In our testing the SSD is the fastest we've ever seen, beating the competition by quite big margins in some benchmarks. It seems the combination between 240 GB fast Intel flash chips and Sandforce's award winning SF-2281 flash controller makes a great team. I also suspect that Kingston tweaked some parameters in their SSD firmware for an extra speed boost.
Kingston went all out with their accessory package; the highlight here is certainly the included 2.5" SATA/USB enclosure which makes this SSD a one stop shop if you are looking to build ultra-fast portable storage. The enclosure also comes in handy to transfer your existing system to SSD with the included software. You'd attach the external SSD to your working system, run the migration software, install the SSD in your system and be done with it.
The big accessory package does drive up cost significantly, making the Kingston HyperX 240 GB SSD one of the more expensive drives on the market. Kingston also provides a three year warranty and 24/7 phone support, which might help justify the increased price, especially for less experienced users.