I have an ic7 ( the last 2 years ) with 2.0 computer and it works perfectly. No issues! It connects perfectly with my pc MAC (with a ant+ dongle on the Mac). The ic7 must be selected in " quick start".
Related with accuracy. Man, the manufacturer ensures a very hi accuracy one of the hiest on the market with only 1% error. Accuracy is accuracy. Watts are watts and 1% error is awesome!
Other thing. It seems, till now, very resistente and without maintenance.
The only *issue " is that it doesn’t interact with zwift, loading resistence when climbing. But you can use your hand and increase it, like you do in real life!
That’s all folks.