I recently moved my 2140 from a 160GB SATA drive over to a 120GB SSD drive. Below you can see the performance of the system with the disk at a rating of 5.4.
Following the replacement with the SSD, you can see below the performance has gone up to 7.1 which is pretty darn impressive. From my perspective it does seem to run faster all round. In fact I’m finding it hard to fault this unit for the work I’m doing right now as it performs very well indeed.
Battery life is also better than before, but I suspect Windows 7 does not know how to accurately predict the battery life with the SSD as the estimates seem to be lower, even though I’m finding the actual life to be longer.