Sorry to be late to respond. I have been away from the computer and out of touch for awhile.
I wrote a post about my wheelchair buying experience. You can read it here
Things I have learned about a wheelchair
My main point is to not just go with what the system leads you to. Be sure to find a great place to purchase the wheelchair and be sure to try out many wheelchairs before deciding what is right for you. The specialist you work with is critical. Find a great one!
I now have a rear wheel drive chair, a four wheel drive chair, and 3 front wheel drive chairs. I prefer the front wheel drive chairs for general use. In tighter quarters, I prefer the rear wheel drive chair. I don't care for mid wheel drive chairs, but they are the easiest to learn to use and likely will fit in the tightest spaces.
The person you work with to get the wheelchair fitted to your needs is critical. My wheelchairs have lateral thigh supports, lateral thoracic supports, aftermarket headrests, arm holders, "seat belts" (AKA posture support devices), etc.
For my uses, power seat elevate is essential. I have it on all 5 of my wheelchairs.
Of all my wheelchairs, I like my Permobil F5 the best. My Magic Mobility X4 four wheel drive wheelchair is wonderful for special purposes.
The F5 is new to me. Medicare agreed to pay for it, but only if I would pay for the standing capability, seat elevate, lights, and numerous other items. My out of pocket cost would have been close to $20,000. I decided to buy a lightly used F5 (not the stander version) on the used market instead, and will have spent about $6,000 by the time I get it completely fitted to me.
A mid wheel model might be right for you, but don't pick one just because someone tells you it will be better for you. Try all kinds of drive to figure out what you need.
Please post here if you have specific questions and I will try to respond.
Steve