I have them on my gps. I like them. The problem is there is no one map set for all uses. I have a handful of different map sets I can switch between on my gps and about three map books for when im out exploring.
Back to your question, they are relatively cheap for what they are and they are the best of their type so yes they are worth the money.
I have had them for YEARS! Absolutely love them. I looked around for a long time for a GPS map solution. Finally I stumbled upon Jeramey's VVMapping.com. I cannot recommend this software enough. I have a trail map book as well. This I seldom use, but it is always with me.
As far as the Route vs. Trail separation, they are diferentiated by symbols on the tracks. I like having them both on the GPS so you can see which is which. In case the "on-the-ground" track is not well marked.
This reminds me, it is time to renew my subscription!!!