Choosing an SBA Lender

How do people feel about various SBA Lenders? Are they all really the same post-close?

In Jeff Sands' turnaround book, he has a rule of thumb to seek lenders with 500-2000x AUM of the revenue of your target (so for a $1M Revenue Acquisition target, seek lenders with $500M-$2B AUM). He argues this is where they will have more interest to work with you to succeed - versus using a bank with $50B+ AUM for a $1M revenue target - they will just ask for the keys and send you to bankruptcy court. If things go South, the smaller bank will have a workout with you as opposed to a larger bank.

Does this really matter? Is all capital a commodity and just go with the best terms?

What are people's experience with SBA lenders post-close?