I have the Smartire system and so far like it. Have only had it about three weeks and about 2500 miles. The only draw back I see so far is the fact that if you decide to change some of your tire pressures, you have to reprogram the system to the new pressure and that requires a programmer I don't have. Am going to see if I can buy one but have not had time to try to track one down. My 40 foot coach did not require a repeater. Have one antenna in the drive tire area and one between the front steers.