I have put together six winkeyless boards and have three more waiting to be put together, I'm basically Hojin's biggest fan. Currently typing on a B.87R X2. The quality is great aside from some minor laser cutting detail on the acrylic plates (around corners). The PCBs are super nice and the software is great, it's really easy to change keymaps on the fly. You need diodes if you want NKRO, you need SMD resistors if you want in-switch LEDs. Mind the shipping fee, though.
RGB part soldering isn't so bad as it's an SOIC chip and some SMD capacitors; the controller is tougher but manageable if you have a steady soldering hand. If you're able to do the work yourself it's probably the best deal you can get on a custom.