Im not a "pro" by any means but i can give you my honest opinions.
What your doing is great. I like the idea. The size sounds ok to me. Here are my concerns and questions
1. What are you charging for air and what types will you have available?
2. I like the idea of the little city but there needs to be some variety. Yeah I would come to play once or twice but playing the same field over and over does not sound too interesting to me. Im sure you want repeat customers and having the same, non-changing field just sounds like it will get boring over time.
3. This sounds like an indoor field, the problem with those is that they get really messy and slippery. You need to have some plan/system in place to make sure this doesn't happen.
4. Ref's - How are you going to run the ref system? Are you going to allow players to come in and ref for some sort of discount or are you just going to hire someone (with little or no knowledge of the game) come in and do it or ???
These are just the questions i would ask. Please don't let me sway you in any way. If anything, i just brought up some challenges for you. Keep going the way you are and come up with something different for people and im sure it will work out for you. And if you need someone to come by and test out the field for you... just let me know
