I'd use the SSD in an old notebook for a standalone drive for light office use. Also, did you see the tests? They say this specific Samsung model is much inferior to the Kingston one.
For most users, low access times are important. All SSDs should have very low access time which means faster bootup, and faster application/file loading. Latency etc that they tested may just be a fluke, firmware issue and it may not be noticeable to the average user. Unless the system pauses/freezes, I wouldn't worry.
Note: make sure to keep backups and make sure the the drive has a warranty. Some stores also might have a return policy, which could come in handy.