I'm in the same boat as the OP. I have a dealer closer to me by a good bit. They seemed nice enough, but I got a great deal on my NX with 50 hours on it from a dealer much further away. Price was less than what I would have paid for a brand new DX at the closer dealer. My thoughts were I could always bring it back to the closer place for warranty work. But....I recently called them to see if I could get some warranty work done and the first question the service manager asked was "Did you buy it from us?" Of course, I said no, and the service manager proceeded to say "Oh....I'll have to ask my boss (the owner) if we can work on it." The conversation in the background went something like "Did he buy it from us? Well, we can take a look at it...but we have 5 jobs ahead of him." So I drove it up to them and left it with them for two weeks. During that time, they did absolutely nothing to it. I called to check on it once, and the service manager asked me "What hydro fluid did you put in there, because our tech is saying that cross fluid contamination is probably what's causing your issue. If that's the case, we have to call Kioti and see because your warranty would be voided."
I went and picked it up. Aside from the two weeks wait, that statement about cross fluid contamination (from a full fluid change) made me doubt their techs intelligence, and thus his ability to successfully diagnose and fix my tractor.
The service manager was a bit apologetic. Had the nerve to tell me they did manage to take a little bit of a look at it (probably that morning), but they weren't going to charge me, just to be fair. Thanks a lot. I'll never set foot on that dealer's lot again....not even to buy a filter. For context, I'm non-confrontational. I politely chatted with the service manager a bit, but he definitely got the vibe I was unhappy and that they had lost a customer.
I drove the tractor 2.5 hours to the dealer I purchased it from---Paige Tractor in Paige TX, and the difference was night and day. We sat in the owners office and he wrote two pages of notes on the issues I was having, and promised to have a tech look at my tractor within the next two days. Just good, friendly folks that have a great, customer service oriented business model. The only problem is they're 2.5 hours away. Had I known what issues I would have with the closer dealer, I likely would have bought another brand. Live and learn.