I have a cateye wireless on one bike and a trek wireless 8 on my other. Never had a bit of trouble unless battery needed changing. I have 15000 miles all over the place never any interference. They are dead accurate by wheel rollout method. Typically my garmin fourunner is off by less than 1/2 of 1%. I did 30 the other day on the bike garmin showed 29.96.
I will keep my wireless.