I bought that kit and I don't have any complaints (yet). It obviously lacks the tools you mentioned, but everything works. I managed to snap the 4mm Allen wrench, but FWIW it was on a very stuck brake pad on my road bike. The previous owner had everything tightened with all his might. The only other complaint I have is that the external bottom bracket tool didn't work on my FSA MegeExo bottom bracket. It does, however, work on my Truvativ bottom bracket. The internal bottom bracket tool works just fine.

I don't have any Park tools to compare the set to, but it has worked well for my needs and there's no tool that makes me rage when I use it. At the $40 pricepoint, you could just get it and replace if stuff breaks.