The biggest downfall to Trolley Square was in the early 1990s when Simon Property Group (previous owners) started treating Trolley Square as just another mall. The leasing group brought in the same places as you would see in every other mall - The Gap, Piercing Pagoda, Ann Taylor, Talbots, Eddie Bauer, etc. They at least found some good ones in Pottery Barn and Restoration Hardware, since they still are the only locations in Utah for those brands.
The biggest coup was when they brought in Hard Rock Cafe. Several million dollars were paid by Simon Property group to renovate the Hard Rock Cafe space, but it was well worth it. I don't know if Hard Rock Cafe stays busy, but it is EXACTLY the type of tennant that Trolley needs.
One big downfall to Trolley was with Eddie Bauer. The management paid quite a bit to renovate the old theaters and put the Eddie Bauer store there. Because of that move and the cost associated there, they were not willing to pay for other renovations for a while inside the mall for other potential tennants.
One place that they lost (albeit 10 yrs ago) was Farantelli's restaurant. Losing the restaurant wasn't bad, but that they couldn't replace it with another restaurant. If I recall, The Melting Pot wanted to go there but ended up on Main Street.
It is good to see the new owners treat Trolley the way that the it was first used, as a festival marketplace showcasing one-of-a-kind stores.
It is also good to see that many of the problems are being fixed, such as the West side parking and eventually the South parking across the street.
Now, if the proposed hotel would ever get built...