Yeah, I’ve played PC Builder and it’s an enjoyable little business sim. The PC building is mechanically fairly simple: cables auto-route, screws come out when you need them, etc. If anything, someone experienced might complain that it’s not realistic enough. But I thought it was fun and it’s worth picking up for free. My older kid actually learned a little bit about PC building from it (and more from actually building a PC), just basic “how stuff goes together” sorts of things.
Random amused “complaint”: You might get a request to upgrade the memory in a system. If you install used memory from an earlier build, they might complain and leave a bad review about you going cheap on them. I refuse to believe that the sort of person who pays a shop to put an 8GB stick of RAM in their box is the sort of person capable of noticing if a stick of RAM was used