What color is it? ;-)
Seriously, more information is required. It's sort of like asking "I'm thinking about buying a Ford- any feedback?" You don't want to buy a 5- liter Mustang if what you need is an F-150.
The first thing is to figure out what your whole-house heat load is and pick a model that isn't ridiculously oversized for the load (as most are), with sufficient air handler to work with the existing ducts. Efficiency-wise there isn't much of a hit from being ridiculously oversized, but comfort and noise-wise it does.
Then there's the matter of how much local distributor/installer support there is for the equipment in question (probably not a problem for Bryant, in most of the US), and any reliablitiy track record you can dig up on the exact model you're considering.