Had my sps for 4 years, only done around 11000 miles so far (work abroad, thats my excuse). So far my only problem has been with electrical connectors beside battery. Bike has not let me down yet, and also does several track days a year which it seems to thrive on. Due to the low mileage it is serviced yearly, belt change and valve adjustment cost me £600. No way I would buy one without full service history from a dealer who knows ducatis, or without knowing the bikes history and owners. Problems with belts and rockers are no worse than with other 748/9** models, if you are riding in all weathers the finish will not appreciate it. If it is being offered at a good price, make sure it is an sps, and not a tarted up biposto (quick way to check is to look at the front head, does not say 'dohc 4v' on sps engines). If you want anything more, send me an e-mail.