I don't have any experience with that trainer, but what you'll generally find is that mag trainers, versus fluid, have less of a "real" road feel, are noisier and not quite as smooth. If those factors don't bother you and/or you're not planning to use it all that often, then it might be a good trainer for you.

I went with a Cycleops fluid trainer after trying both both the fluid and mag. Granted, I can't stand riding the trainer anyway, but I will say that it at least has a decent feel and isn't very noisy.