I use Doppler when overseas. Its doing its job very well. Over land, i fly VORs only.
You can easily cross the ocean with Doppler. Also, You can use to guide you into VOR signal range, then you fly to VOR, and after that - you on Doppler again. Its the same as you realigning INS using VOR station.

But Doppler require some flight-planning. I never start Doppler navigation on runway. I coming to specific waypoint using VOR, and then fly doppler. Usually i fly SID by VORs, and from SID endpoint i fly Doppler.