I have the commercial versions of this and they are very good. However there are lots of versions depending on the size and type of wheels, e.g. my 27.5" 2.5 MTB wheel is too wide for a standard rack.
I need some more racks as having seven of them is simply not enough for a family of four, I brought all my last seven for £120 as they were second hand, I won’t get a bargain like that again, so will try one of these. They look great and well done.
I would also add that the rear wheel bumpers are pretty essential as they allow the back wheel to be held in place. We stagger small bikes and big bikes to maximise wall usage and all of the bike wheels are off the floor by 3-5cm.
It’s very difficult to hang the bikes by the back wheel, you need to pick the bike up completely to do that. I’m not sure I could pick my mountain bike up and hook it in, I know my kids can’t but they can put their bikes on the back wheel and then slot them into the rack easily.
I investigated lots of options before buying the commercial version which is very good, though at a retail price of £50-60 per bike is not cheap when you have seven bikes. I have a number of hook based systems I brought to try things out and they were all pretty useless. I never thought about making one though …