I recently went to a downhill mountain bike park. These parks, while fun are quite brutal on your bike. My recent experience left me with busted rear wheel. It was busted in the sense that while riding you could hear all sorts of pinging noises coming from the wheel. I tried to tighten up any loose spokes while I was at the park but ultimately it was time for another solution. I didn't have money for a new wheel and the last time I brought my wheel to a shop I was less than happy with the results. Chances are you may be in the same situation hence the reason you are reading this review.I purchased this item knowing that fixing my wheel would not be easy but I do have a somewhat mechanical background and access to the internet so I figured this was my most affordable solution. The tool arrived in a timely manner and was packaged appropriately (typical Amazon, keep up the good work). The device came with a simple, east to read set of instructions. The device was well built and felt durable, I was initially taken back as the size in person was much larger than what I had expected based off the pictures. I used the device to check the tension on each of my spokes and Park has a web page that will let you input the specs for each spoke and it will tell you where the wheel is weak basically. I think the hardest part for me was trying to figure out the specs for my particular spokes. That was very frustrating (not Parks fault though). After spending about an hour with the device I became quite comfortable using it and even got into a nice rhythm using it. I re-tensioned the wheel while it was on the bike because I did not have a wheel truing stand (I really don't think it is necessary unless you are building a wheel from scratch.). I found that setting the tension is much like tuning a guitar in the sense that when you tighten one spoke you loosen another. My advice is to adjust all of them a little bit at a time and continue going back over them until the tension is set vs. trying to get them all set on the first try. To summarize, I have a fancy new tool which was well worth the money and I have a nice tight and straight rear wheel and ready for the trails. If you are not afraid of a little challenge and some elbow grease I would highly recommend trying this out. I thought it was a bit pricey but it has already saved me a trip to the bike shop not to mention a new rear wheel. It will also help me keep my wheels in tune which will lengthen the lifespan of the wheels.