I can’t see your link but I’ll answer from my own experiences.
I had to rely on 3 of these for a couple of years and honestly they were a lot of trouble and cost me a lot of plants:
EAGLE PEAK 61'' x 28'' x 79'' Walk-in Greenhouse, 2 Tier 4 Shelves Portable Plant Gardening Greenhouse, Front Roll-Up Zipper Entry Door and 2 Roll-Up Side Windows, Green : Amazon.com.au: Garden
Wind was a constant problem. I came home a few times to find one blown over and plants, pots and media in a foot high stack on the ground. After I sorted that out so they were firmly fixed to posts driven into the ground it helped but didn’t solve the problem. Even when well fixed down the upper part would still move around in the wind and the stupid springy shelves would flex about bouncing the plants over or even right off the shelves.
A worse problem was heat. I don’t think our climate is nearly as hot or unpredictable as yours but I still got a lot of heat damaged plants. My intention was to use the supplied plastic covers for the coldest 3 months of the year, and a sewn on home-made shadecloth covers for the warmer months. The problem is if you get an unseasonal hot day in winter then everything inside cooks, especially if you’re not home to open the flap/door up and splash water around. One winter day we had to drive down to Sydney and the weather changed becoming very warm so I had to ring around the neighbours till I found someone at home who could go to our place and take care of it for me - still lost plants.
In our climate these things lasted 2 or 3 years. The first things to go are the zippers, followed by the lowest joints in the framework which are just plastic coated steel and very rust prone where water might sit. The actual plastic covers are very tough and will last for many years (as landfill).
Outside of the three months of winter, my intention was to remove the plastic covers and sew on a close cover of shadecloth all over. You couldn’t use the plastic covers on a day of over, say, 25degrees celsius or you’ll get cooked plants as they are not designed for airflow. Shadecloth is not easy to sew so that was a lot of work that I wouldn’t do it again. I even tried making slip-over one-piece shadecloth covers on an industrial sewing machine but getting the sizes and angles right did my head in.
Another thing to remember is they provide almost no protection from cold in winter. If the temperature has fallen to 10degreesC outside then the inside will be the same temperature within a fairly short space of time. Thin plastic provides no worthwhile insulation.
So no, I wouldn’t use them again.
If I was in that position again I’d buy some framing timber (2x4 or 2x3) and some shadecloth and make something very simple of my own design. Perhaps a lean-too style that uses a house wall for one side, leans up against it. Build the shelving so it’s free standing and not troubled by the framework thrashing around in the wind. Make things modular so they can be moved and reconfigured and used somewhere else if need be. Take it with you when you cease renting.
Also, why do you need a greenhouse in San Diego anyway? I thought it was warm there year-round?