I've sent to Krimar three times, once for a 3.5T which I sent back for him to double check some things, including parallel-ness between the viewing glass and the negs (don't always agree). He said it was the best I could expect from a T. He reminded me of the age of these cameras and technology of the time (late 50's for mine), fits with Nick's comment from him about the T.
The other one was a 3.5F, newer, CLA, nice job no issues.
Both times he received the camera and sent it back out within 3 - 4 days.
Cost in the original jobs has been between $300 and $350, shutter rebuilds, advance mechanism, probably typical CLA stuff, no lens work on mine.