Yes they are good, although the motor is the thing likely to go first. I had a new motor in mine 5 years ago and its OK, although I only develop sheet film. The sheet film spirals are good, but I did notice edge build up due to the film emulsion touching the spirals throughout development, so I glued a series of plastic 'pips' around the spirals to keep the emulsion side away from the spiral surface, and now my negs are remarkably evenly developed, so much so that I think it's the best way there is to develop film.