Shameless plug - I have a kit called the Practice 60 on my store, CannonKeys.com. You can practice soldering on it, and at the end, you'll have a fully functioning 60% keyboard.
The whole idea is to practice there, so if you mess up, its cheap, but you get soldering practice before working on a $400 custom kit.
Practice60 is legit. Durable. Not swiss cheese. Get 2 in the kit. Allen Iverson. Cheap! All bases hit.
I recommend soldering, desoldering, then soldering again. Repeat on second board. Then repeat til you're good.
I'm sure the Satisfaction75's PCB will also be robust like all Upas' PCBs, but if you ever have to solder, let's say, on a CA-66/Moon TKL/Canoe/other high end keyboard that looks great but doesn't have as nicely made PCB, being good helps keep you from lifting a pad.