Nothing wrong with an R3, I've had mine just over a year.
But after 22 years of a V1, I really missed the directional capability. The R7 addresses this as well as a useful increase in range. The weak point is K BSM from some cars, but an upgrade is promised for this.
As far as no RHD version, don't let that put you off. The V1 is LHD only too, and was never an issue for me. , although the display is recessed on the R7 so you'll want it just to the right of muflube, not on the left.
My R3 will go on a TM auction which I'll link to this thread.