I don't have any experience with their semi-autos...other than my brother-in-law swears by his 92, and it does shoot as good as any Beretta that I've tried. (No personal experience with that model)
I do now own one of the .45/410 revolvers in a blue 6" and it shoots very well for what it is (just like my T/C .410, but with four more shots), and I do own two of the Taurus .22 rifles, which have have been put through the ringer.
No problems with anything so far by me, and even looked at one of their model 627's at the local shop...
That price seems about right for a used one.
From what I've heard, it a bit better featured than a Sigma, and it is (from what they tell me at the range) no more or no less reliable than any other entry level pistol.
However,
I wouldn't suggest picking it out for him, or being the mediator between these two parties. Put him in touch with the other party if you have to, but other than that- there is a chance it could come back to bite you. This happened to me years ago, and swore I'd never let it happen again- and it hasn't.
If the deal goes wrong or the firearm doesn't function (no matter what brand or kind it is), there is a possibility you might become blamed.
However, if you completely trust these two parties and feel it's the "right thing to do," go for it.
I just don't do this kind of thing any more, and hope to spare a new friend some heartache if possible.