It had it's moments. However when they took the break out character of season 1, senor ben chang and nurtured him by not having him be a teacher, they did a second and third paintball episode, and then turned the Chevy's Character in to a characacher in season 3. I stopped watching. It had its moments but they have been spaced out further and further as the series dragged on(the Law and Order episode being the exception in the 3rd season). Best part of watching has been the TNA of the two female leads of the show(but the whole force love circle between them and Joel's character is nauseatingly trope).
Best headline I saw about them recently when Chevy was fired and or quit.
Actor nobody remembers quits a show nobody watches.
I think the sole reason that the show got a fourth year was because the creator was such an asshole that the network renewed of for a shorted forth just so they would have the pleasure of firing him.