Keirweir owned a Phiga. I have never played one personally, but one thing that drives me nuts about his guitars is how he totally jams all the knobs and toggles together, they are often crooked or just not thought out well. You can see that on this particular guitar if you enlarge the photo showing the bridge and controls, those three toggles are stacked right on top of each other and very close to the pickup selector. When you are reaching for the effects loop playing live, you want to be sure what you're touching. Plus, it doesn't look great on the guitar, either. I don't know whether he just puts in really small control cavities and then has to shoehorn it all in, but there's really no excuse for it. The selector on this one is tilted slightly, one other knob is off at an angle.
The other thing I noticed on this guitar is the saddle for the low E is upside down and adjusted waaaaay off from the other saddles on the bridge, I'm not sure what's up with that but it looks like it might have some intonation issues.
This may be a perfectly good guitar, and when I looked Keir's the woodwork was pretty nice. Plus, the starting price is reasonable. But I'd ask about the saddle for sure.