Bought this microscope after getting a couple of at-home/posted tests done which suggested I had a low sperm count and motility.
After a few minutes of setup guided by a video from the company I was able to see lots of sperm swimming wherever I looked in the sample, which was reassuring.
I was planning to make some lifestyle changes to see if I could see an increase in the density or the swimming speed, but in the end my partner became pregnant in the first month so I didn't need it for so long :D
Now, I'm gonna look at some household objects, and probably keep it for a few years in the hopes that the kid will be interested in microscopy.