Has anyone been using a Garmin for GPS and had the opportunity to campare it with a Nyon. I want to start using GPS on the Delite and I have zero experience with either Garmin or Nyon. The Nyon upgrade is not going to avaialable at my local R&M dealer until Sept. The cost appears to be similar for the Nyon upgrade or a Garmin 1030. Hoping to learn which GPS option may be best for bike friendly routes instead of roads with heavy traffic.