His commute might be worse than 30-40 minutes. I live near GV and there is just no good way to get to Radnor from there. We actually hardly ever go out that way because of traffic. My DH works in The GV Corporate Center and got his Masters at Villanova. To get there at rush hour, he had to go many different roads including the Blue Route. You'll find this area is somewhat congested on the major roads, 422, 202, 30, and the awful Schuykill mess, especially at rush hour.
The school is good though. We live in the school district up from there, and are ok with it, but are thinking about moving to TE or GV because they are better.
Where do people he works with live? I'd start from there. Also, schools are just one factor. Look at the libraries, YMCAs, stores, etc. There's a lot to consider, but I'm not a huge fan of large commutes.
EDIT: My DH said the commute will likely be 45 minutes and your DH might want to consider taking the R5 train from Malvern into Radnor. Good luck!
Feel free to PM me if you want advice on certain roads in TE and GV. I'm quite familiar with them as we've been sorta looking for about 10 months.