Getting around El Potrero Chico (rental car or not?)

Can folks give me any information about getting around El Potrero Chico? We (my husband and I) are contemplating whether to rent a car from Monterrey or just get a taxi to our lodging in Hidalgo.   But then the question is - how to get around to the climbing areas and to town etc.. Are local taxi's abundant? Is there Uber? 

When reserving a rental car online - prices look ridiculously cheap - but then once insurance coverage is added - it's not so cheap.   I would also appreciate hearing from anyone who recently rented a car from Monterrey and what it cost (and what company.)

Thanks in advance for any info.

I stayed at Rancho El Sendero for 4 nights couple years ago. I had them pick me and my climbing partner up from the airport. We found them to be located about half way between town and the closest crags which was about a 10 minute walk either way. Cant recall how much we paid. They are a really nice family who run the place and gave us a car ride to the crag and showed us around after we checked in. Highly recommend them. 

Most lodging will arrange airport pickup and return ( though the latter can be 'iffy'--almost got stranded at the end of my last visit when the airport ride didn't show, but got 'rescued' by the maintenance guy at our lodging who graciously gave us a ride). No need for a car once there --everything is walkable and plenty of taxis and often folks will just stop and offer you a lift if they see you walking---one of the best places to be without a car for a climber.

Absolutely no need for a car. There are many options for taxis at all hours to and from Monterrey airport usually most easily arranged through your accommodations. The closer your accommodations are to the park gate the less walking you will do but the differences are trivial. Shoutout to El Cubil Potrero - high quality facilities, well organized and making significant contributions to the climbing infrastructure. 

No need for a car once you get to Hidalgo. Find accommodations as close as possible to the crag but nothing is very far. There are some houses for rent virtually in the crag.