i have the
bx24 and mow about 4 acres. i also have a JD/scotts 17.542 which is basically the JD 120. it's a 17.5 horse kohler engine w/ 42" deck.
couple of points:
1. power steering is awesome. you'll love it.
2. any muddy spots? 4x4 is awesome although where the smaller mower tends to "float" on the large rear tires, you'll make deep ruts with the much heavier bx.
3. mowing time is basically cut in half due to wider deck, more power.
4. clearance under low tree limbs can be an issue due to ROPS.
5. strength of construction is much better on bx. very difficult to break or bend the deck, whereas i have had to weld up the deck on the JD.
6. plan to rig up a bungee to hold up the plastic mower deck chute. it really helps distribute windrow material and keep the finished lawn looking good. if you don't, the bx will leave deep windrows when you cut deep grass and the grass under the windrows will turn brown and rot.
7. plan to store diesel, not gas. not a big deal, but it needs a different additive and you'll need to keep it a bit warmer if it gets very cold where you are. i find it to be more efficient and can mow 4 acres on a little more than a 1/4 tank of the bx's 6 gallon or so capacity.
8. if you need to trailer your machine for service or whatever, you'll need something a little stouter than what the little mower takes. think dual axles if you have to go any distance.
overall, very pleased with the bx i have. it's really nice to have the hydraulics, PTO and FEL and BH.
amp