Is GDEMU worth it?

I finally got myself a Sega Saturn, but sadly, it appears my console is a bit broken, as the laser is dead. Rather than trying to fix it, I'm just gonna sell it for parts. With the money however, I want to buy a GDEMU for my Dreamcast, as games are getting far too expensive, and I want to keep my current GD-R's unused and clean. But is it good, should I buy it, and how hard it is to setup?