Never mowed with a Tank. I guess there ok, but I have worked on several Cub Tanks.
And yes the Dixie in some peoples eyes are over price. But the reality is the major components of the Dixie are of a better quality. In short should last longer. My issue with the Tank is it is a real wolly-buger to work on. Everything is under or behind something and imposable to get to. There is no real simple service.