Running ATTO lots of times is fine since it's heavily compressible data.
If the drive detects heavy incompressible writes (as you'd get when running pretty much any non-ATTO benchmark), it'll start throttling your write speeds. Basically you want to limit the incompressible benchmarks you run and also give your SSD time to perform garbage collection by leaving it logged off for a couple of hours per week. To avoid heavy incompressible writes during the normal use of your PC, you can set the temporary folders for programs like 7-Zip/WinZip/WinRAR and audio/video converters to an HDD rather than your SSD.
Also, if you've already run lots of incompressible benchmarks, you can get an instant recovery by secure erasing the drive and starting fresh.