I don't how useful this information might be, but I'll put it out there. I did briefly consider starting my own. I also visited a couple of local ones to me and the pricing structure is roughly the same but their setup was completely different. The people at them were definitely hit ad miss.
The
true Makerspace I visited has an pricing structure virtually identical the one you linked to. On the day I visited, the majority of people there were in the younger age bracket (18-25ish) and didn't have the huge number of responsibilities I have now. They acted very kindly but I somehow got the feeling that, being as old as I am, that if I didn't have excess experience to pour into the talent pool that I was just going to be a waste of time to them. You know that feeling, imagine being forty years old and invited to a frat house party filled with drunk 18 year olds. They're friendly enough, offering swads of beer, weeds and sex, but it's hard to feel like you fit in with that crowd. Except no one at the lab was drunk... or high... or sexy but the point still stands. They also offered a bi-monthly kid-only class that I found rather attractive as I have three to consider.
The other group had a pricing structure that was rougly 1/3 to 1/4 of the makerspace. It consists of a group of people generally 10 years my senior, minimum. They don't have a true makerspace in the sense that everything and everyone gather in one location. Instead they meet once a month (or week, I forget) in a round-robin collection of suitably equipped garages. For example, you have Neil, Bob, Sam and Sarah. Everyone meets at Neil's garage to use his wood working tools. Next is Bob to use his metal working tools. Next is Sam to use his CNC or something, last would be Sarah's with her glass fabricating tools. Then the cycle repeats. On the questionnaire, they asked me to list my tools and whether you would be willing to "fold them" into the circuit. I indicated I was not going to have my garage or my tools on the circuit. I have my reasons, not the least of which is my garage is awfully crowded.
When one of the members asked me why I didn't want to put my garage into the circuit (which reduces membership fees), I told her that my tools were not safe. Some of my wood working tools were inherited antiques and had no safety measures whatsoever. No kickback guard. No safety switch (light switch

) etc. Or had been modified by my father (again no safety). Almost immediately, they lost interest in my conversation with them and acted like I wasn't there. They rebuffed further questions, refused to return any later correspondence from myself or my wife. My wife does own tools with all of their safety guards in place and are the primary tools used in the garage but are not nearly as durable as my own antique ones. I assume they weren't interested in the consumer quality tools she purchased either

It's been a year since then and we (as in my wife) contacted them again expressing interest and they responded. We both agreed to make ZERO mention of any tools we own which effectively removes our garage from their circuit but increases membership fees slightly. I don't feel especially comfortable being a part of them because of their rotten attitude last year. However my wife attended a couple of their "membership signup" meetings and the people from last year are no longer members so it does seem to have changed in tone. So my wife plans to join their group for a couple of months and see how their overall attitude is.
In any case, in both safety was a top priority (like I don't consider safety by not letting anyone use my tools??

) The Makerspace requires tests to use some of their tools I think and offer training classes for some of their more sophisticated tools.
It wasn't clear whether I needed to supply my own raw materials though or if membership fees included raw materials. Both groups seem to hee and haw around that issue.
To boil everything down, I would say it comes down to two things. First is if you feel comfortable around those people. Remember, there are some dangerous tools and your life may be in their hands.
Second is how willing they are in answering any and all of your questions. I had more questions answered signing my kids up for martial arts than I did at either group I visited.