Well, that is that guys opinion, but not mine. Had one once, good tools. Sold it when figured out how to make room for individual tools.
You could buy a welder, and still make one for less than that costs, and I think better. Try a search for DIY drill guide.I think I have found the best drilling solution . For small shops and its not this retrofit but this Woodpecker product.
Auto-Line Drill Guide. Only thing its expensive. Going to spend of money the government gave us.