I use a 2520 with the 62D belly mower, R4s - unloaded and cut @ 2 acres with lots of trees, some uneven terrain. Occassionally use it to cut a 5 acre field. I love the cut, tires don't leave marks except in the swale and they go away in a few hours to a day. I used a rear Woods finish mower twice while waiting to get a replacement belt of the deck (the store is a 40 min drive with lousy hours so took 2 weeks to get the belt). The rear mower was nice for getting under some scrub trees at the property's edge but limited my ability to get in close to the trees. I usually cut up to .25" from the tree, so only use a lawn mower to edge once a month. I previously used a LT180 to cut the yard with a 48in deck. For awhile, I used my dad's old IH LoBoy with a 60in deck in addition to the LT, just to get the yard done faster. Cutting time is 50% faster now, and I can cut a swale with the 2520 while before I had to use the weed eater as the LT would get stuck in the water soaked ground.
I used a neighbors brand new Toro zero turn while mine was in for servicing, and found the finish to be essentially equivalent. Come winter time, I can clear the driveway of snow with my 2520 and his zeroturn sits waiting for spring. Same for bringing firewood out of the woods loaded in the bucket up to the house.
In short, I'm very happy with my selection. I know others that say forego the mower, get the 2520 and a nice zero turn. My view is that is now 2 vehicles to store and maintain.
Good luck with your decision.