In real-world case scenarios, most SSDs will perform similarly. While benchmarks tell a different story by giving over-exaggerated numbers of read & write performances. The most obvious difference will be reduction in cold-startup and program execution, which in my extensive testing, have found to be overall similar in amongst all SSDs.
As others have pointed out, you're a lot better off with a local warranty brand new SSD, as they're prone to failure a little bit more than their mechanical counterparts. Kingston is tried and tested if you want a no frills SSD, I'm on my 2nd year on that SSD and so far its been working great. One great benefit or disadvantage of having an SSD is that once you go aboard on an SSD, you don't ever want to go back on mechanical. The difference is simply too great to fathom.