The TR series do have some more circuit boards, but they are less mechanically complex than the TC5. Fortunately the circuit boards are easily replaceable, and are also tested to a high standard.

The TR series has mechanical simplicity going for it, in addition to being gentler on clothes than the TC series. The TC-5 is better if you come home from work with really dirty clothes, or if you just want an absolute minimum of electronics in your washer. There isn’t a wrong choice between the two.