Until you snag the wire on something, that is
...! I have one elderly wired one (about 10 years old), which occasionally stops working owing to rainwater getting in at the hole where the wire emerges; and one VDO wireless one (with digital signal - doesn't seem to be any problem with interference from other cyclists' computers). Personally I'd stay with VDO in the future. It depends what your budget is: VDO do a full range, the difference is the number of functions you get...