Given the success of the format already in other markets, and the lackluster performance of Majic, it's probably a pretty good call for iHeart, and gives 100.3 a clearer niche somewhere between 95.5 and 104.1 that it didn't have before. A shame that such a heritage brand was thrown away, but the Majic I heard over the past few months was probably the worst R&B station I've ever heard... Al Green followed by Biggie? No surprise that 95.5 ate it's lunch.
That said... for having a nice portfolio of signals, iHeart STL isn't exactly one of the company's strongest markets. The properties scream "cookie cutter", and don't really seem to perform well, even at that. At 107.7, while each market has its own preferences, I can't think of a single CHR market where the CHR is barely top-10 6+. A week before going all-Christmas, 103.3 kept its name but changed its slogan... yet again. Remy and Mason seem talented, but the morning/afternoon situation at 93.7/103.3 is just bizarre. 104.9 just comes across as the rhythmic tracks of 107.7, plus burnt out early-00's tracks you didn't really need to hear again. Heck, I'm surprised they didn't just give Louie 103.7 an upgrade to 100.3 - to me, that automated station is the most exciting thing coming out of the cluster!