My motorhome came equipped with the Xite system (
10.2" main monitor and 7" monitor in front of my wife's chair) which has Rand McNally GPS plus radio, satellite radio, bluetooth, etc. Trips developed on other websites can be imported into the GPS on the RV and I find that super helpful.
I have to admit that I haven't used RVTW yet and that's mostly because I have always used the Rand McNally trip planning website called TripMaker. It's nowhere near as complete as RVTW but like Mike said... sort of, it's what you get used to using that is comfortable.
I plan ALL my RV trips. Even simple ones to destinations I visit frequently. I book all my reservations in advance, plan out the route and transfer the details to my Xite system.
We plan gas stops on Gas Buddy and Google Earth to scope out access. But I don't enter those in the GPS. The gas stop planning is mostly done each morning before driving off. Since we travel no more than 350 miles a day and a tank full will get me 430 miles it's our goal to fill up as close as possible to the end of the day's travel, so we start the next day with a full tank. Being 38' long plus another 20+ for the toad and tow gear you never treat a gas stop as a thing of whimsy. It's planned and scoped out on a SAT image before we leave our campsite.
We have always used the Social Knowledge campground reviews website
www.campgroundreviews.com. We've come to know how to pick out the good ones from the not so good and I submit reviews for new places we visit.
We're planning a 3000 mile trip right now. We'll leave July 8th and travel 1500 miles to Akron, OH to visit family. Also, my mother died in April and we were not permitted to have a funeral, so Ohio is now allowing visitors so I can visit my mother's grave for the first time.
I used Google Maps to come up with my route, and picked cities the requisite 250 to 300 miles along the way. Then i used RV Park Reviews to select the actual campgrounds and cities. Now today, I'll start making reservations and entering everything into the RAND TripMaker website for transfer to the RV's GPS.
I suppose that RVTW would do a lot of those chores for me - but I'm 70 years old and just must follow my usual system or my head would hurt (jk).