Agree!
Ten years five contiguous terms without a break is enough!
Go home and experience your genius at governing for say four to six years before you can return!
The most support I have seen that limits Reps and Senators is any combination of 12 years. For instance if you have been a Rep for for three terms you can then run for a senate seat (3*2=6 plus 6 = 12). However if you have served for four terms, you cannot run for the senate as that would put you over the 12 year limit.
The biggest problem with term limits is that it diminishes the power of the elected official and moves it to the un-elected civil service proles. If term limits were ever to pass it must be accompanied with some limitations on the tenures of the un-elected ciphers. Otherwise if some bureaucrat has a problem with a politician the bureaucrat will simply slow-walk any requests made by the politician knowing that the resistance will pay off soon as the politician may not be re-elected. The bureaucrat’s problem goes away. The civil service folks who are lazy, arrogant and un-helpful have no fear of being sacked. But they should.