I've had the Sabre 2148 with a Power-Flow Bagger for over 10 years now. Most any tractor mower can cut the 2 acres of lawn that I have to deal with, but not many can handle the leaves from the dozens of Maple and Beech trees that scatter the lawn, not to mention the surrounding woods. This set-up mulches the leaves and vacuums the lawn like nothing else.
I got tired of climbing on and off the mower to dump the bags every 2 minutes (seriously) so I converted the bags to a Protero Hopper (Dump-from-the-seat). Best move I've made with this machine since I first bought it.