Jen has materials in the high quality I previously only dreamed of getting from other vendors. No scratches, off-center bits, burs, or oil. Properly machined, polished, and cleaned. Her prices are a little high for my taste but I'm cheap and picky. I still think her materials are worth every penny.
Excellent kits and tutorials, fast shipping, great communication
Cons
None
I have ordered several kits from SPG Supplies. I love all of them. Excellent quality, excellent communication, well written (and funny) tutorials - what more could you ask for? And now that they have finally released kits and a tutorial for the Stan Star, I'm ecstatic!
Physically I have a difficult time working with steel.
Still working on my Stan's Star. I love their customer support. The fact that if you can't complete a kit, you can use the cost of the kit towards purchasing a finished item of the kit you purchased, and keep the kit! I will stick to it and finish it, but it is nice to know there is help available, if I throw in the pliers.