If your referring to the sperm check test, Keep in mind it only checks the count, it gives you two lines if there is 20 million or more sperm, it does not test motility ,or morphology or even tell you if they are alive. also a lot of people had issues with the test not performing right and giving them a false reading. If your wanting to go the home testing route I would just buy a microscope and petri dish thats what I did so I can look at them myself verses paying a lab $200.00 every time I want to know how his sperm are looking. of course its not going to give you specific numbers but a general idea, there are also semen analysis videos on youtube and typically if there are too many sperm to count and they are moving fast then he does not have an issue, you can also see the morphology(normal verses abnormal sperm) with a high quality microscope. I got mine on ebay it was a former college microscope so its fairly old, but it works.
Oh I forgot to mention if you want a more clinical test with specific numbers , some sperm banks will do semen analysis. The NW cryobank near me does them.