Per the letter Ted sent me:
"Off the field, Bears gameday is built around comradery with family, friends, business partners and fellow Bears fans. Win or lose, our goal is to provide value and create lasting memories for a gameday that is second to none. We are committed to ensuring the in-stadium experience continues to improve each year. Investing resources in both the gameday experience and the year-round Season Ticket Holder experience remains a primary focus."
From my perspective, as a second generation season ticket holder, and owning club level PSL's, I can tell you the "experience" has actually been worse each season. The food quality, which was phenomenal in 2006, has gone to shit. The bathrooms are still a disaster. My actual physical seats were in complete disarray (slashed up) after a Kenny Chesney concert and stayed that way for 2 seasons (although I complained and wrote letters ). And the price of a Beer is now on par with what you'd pay for a case at Jewel.
When you add that to the disaster on the field and the fact that fans from Detroit and Greenbay almost out-number our fans now, the "experience" is probably at an all-time low since I started going in the 70's.
The only improvements that I can note is they swapped out the jumbo-tron for bigger screens before 2015.