Tight spots? I use a right angle drill or a flex bit extender.
This may be good for assembling furniture.
Either of which will cost you more than this deal. I'm sure you're really handy, stop being a snob about it.
And yes, this is good for assembling furniture and all sorts of other light tasks. I've used them before, but never felt I needed to buy one at normal prices. For $7 it's a great idea.