I just purchased a 2018 Minnie Winnie 22R. This my first motorhome, and previously we owned a pop up camper. We have taken it out once for three days and absolutely loved the convenience it provides. Although, all the new systems seem a bit overwhelming! I am looking forward to reading through the forums and hope to learn a lot!
Have a look at a thread called " Impressions of my 2018 MW 22M". I believe the 22 M is very similar to your 22R, with the major diference being your corner bed versus the bed slide in the 22M. Both come on either a E350 or E450 chassis, and have similar appliances and options.
Lot's of good ideas for modifications, additions and problem solving.
Congrats and enjoy
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Lowdie24
Currently Between RV's
Vancouver Island BC Canada