I opted for the GC1720 over the GC1710 for the reason previously stated earlier in the post by Stlmatt. However, I have not had any issues with power or dealer. I did have a minor issue with my MMM not being level, and not lowering completely. The dealer volunteered to pick up the tractor and deliver it back the same day. When the truck showed up the driver (also a dealer mechanic) asked what the issue was with the tractor. I explained to him what was going on and he asked if he could look at the tractor before loading it. I replied sure, and he found the issue causing the MMM not to lower completely and then leveled the MMM. He had me test everything out for correct operation, and then took the time to give an in-depth walk around the tractor, explaining every little detail. As you may have guessed, this is my first tractor and he felt I should feel comfortable operating it, and he said, "reading a manual is not as good as being shown". So instead of my tractor going back to the dealer, it was fixed on the spot.
I have been a mechanic on cars and aircraft for over 20 years, but for some reason I was a little gun shy when messing with my new tractor. It could be it had only been 3 days since it was delivered, and I felt that the MMM and the rear PTO guard placement (the reason the MMM wouldn't lower all the way) should have been checked prior to it being delivered. Besides the little issue I explained about the MMM, everything has been great. I have used the FEL and hoe with no issues. The dealer gave me touch up paint (MF grey and red in spray cans), 2 MF hats, and I feel a fair deal on the tractor. I got the GC1720 (new style FEL and hoe) and MMM for $17,000.00.