We did much like like washley1. We went from tenting with a minivan, to pulling a deluxe popup with an SUV, then straight to the 3400 and the dually. We love it. As others have said, take your time, learn the idiosyncracies slowly. One big advantage of the Monty is being able to do stop-and-go camping - just put the feet and stabilizers down (the remote helps) without unhitching. WAAAYYY easier, more comfortable and less time-consuming than the afore-mentioned alternatives. The pets love it, too. When we bring it from storage to the house to load up, the cat runs for the door!
We did an experiment in a big empty parking lot (they still have them in New Brunswick, on Sundays) where Kathy slowly drove the rig around in ever-smaller circles while I watched the angulation and the axles and moved soda cans to mark the circle. We got it down to a 65-foot diameter, which proved we could go down our cul-de-sac street and turn in the keyhole at the end. Another thing, when turning left in city intersections, head straight out, then head for the far corner of the sidewalks, then head for the left lane of the new street. This way, your left side and wheels will clear the centre median or painted line. I prefer to get close to things with the nose of the TV, where I can see them, instead of brushing things with parts I can't see. Also, if going straight, if your mirrors fit, the whole rig fits (side-to-side, anyways). Have fun!