Did a lot of taxis this trip.
Staying at the BWV. Cab fare ran between $8 and $12 (plus tip) pretty much anywhere we went. If going to/coming from the MK, the cab stand is at the TTC....otherwise its pretty much front door service.
It was wonderful to catch a cab for EE at the AK or MK - no standing on the bus. And we used it a few times when we were running "late." And for a whole bunch of resort to resort travel. The only issue we had was we had six in our party, requiring a van (which comes at the same price) so the van had to usually be called. Use the hotel bell stand.
It was still cheaper and easier than renting a minivan.
BTW, the taxis in WDW are contracted through Mears.....