I have both TI's and Chromes and while the TI's are great strings, they settle in and become more mellow (in a good way) whereas the Chromes maintain that punch far longer. In fact, my Chromes are about a year old and they are still pretty much as bright as the day I put them on. The TI's sound more like (but not just like) traditional flats now (they did not at first).
Of course the tension is different between the two and I prefer tighter strings, but the Chromes are reserved for my classic rock and the TI's are for my mellower projects.
Chromes are just a different type of flatwound. They are like an aggressive, roundwound-like flat in that they seem to have more punch, clarity and can even sound clanky and bright when slapped. Yet they also have that killer thumping punch to them like all flats do. Even after a year! If someone is looking for Chromes to settle down and give them that traditional thump of an old school flat, good luck with that.
Chromes are THE perfect string for classic rock IMO because they give one most all the benefits of both flats and rounds and do so for a very, very long time without string changes.
Wanna know how to keep from buying new roundwounds once a month? Use Chromes!

Seriously, for a flat they are bright, and unlike a round they keep that brightness literally forever.
Just another opinion.