I rented from JJ Land for two years. I had a small apartment with a low rent.
JJ was extremely receptive to my needs while moving in and moving out.
When I called maintenance, they performed the service I expected given the cost of my rent.
I feel JJ Land is an adequate budget landlord. You get what you pay for. My rent was cheap. They seemed to try to do a triage when it came to repairs. They were extremely quick for one emergency I encountered and inadequate for another emergency when we suffered a communication breakdown and they didn't understand the scope of the issue.
Per word of mouth, it appears Mozart is the best. Forbes Management is my favorite landlord based on my renting experience. I've heard nothing but bad regarding Lobos.
In summary, my rent was low. The quality of the apartment and quality of their service matched my expectations based on that rental price.