I purchased it at 5startuning.com. I believe I paid $508 shipped to my door. There was a sale, I believe, on the website at the time for about $45 off. Updating is easy; however, the directions that came with the tuner differed from the website directions as I’m sure they updated their website; however, once you make it to the updating page on the website, updating the tuner is a piece of cake. Once you update the tuner using your personal computer (MS windows, Not sure if they support Apple products.) to the latest software, just connect the tuner to your RVs OBD port and follow the directions. It’s a piece of cake. One thing I noted once the tune was complete was that my gas gauge was completely wrong. I had a full tank and it said I only had a half so I disconnected the battery, reconnected and everything was fine. No issues since.
Keep in mind once you tune your vehicle you can’t tune any other vehicles and if you ever want to return your vehicle back to the stock configuration and remove the tune, you have to use your specific tuner and then the tuner will become “unlocked” as they say. Once you tune it to your VIN number they consider it “married” or locked to your VIN.
For me, it was a great purchase.
It might just be me but previous to the tuner I really struggled to get on the freeway at 60 miles an hour and now even towing my jeep I don’t even worry about it. It shifts quicker, firmer and just overall better performance in my situation.
Hope this Helps, and all as always feel free to reach out for further info