T254, bought used (and abused) 4 years ago, 2014 model. Currently 650 hours. Have replaced rear seals, battery, changing oil regularly, did the 500 hour service a couple years ago. Need to chase some electrical gremlins. (i.e. glow plug timer is up to 13 seconds from 9 even with warmer temps we have now. Fuel gauge only shows 1/4 when completely full.) My one complaint is the soft metal used to raise and lower the mower and keep it a certain level. Looking to have parts remade by local machine shop with a thicker or harder steel.