I just played my first solo gig on the Legere Signature 2.5 reed and I have some thoughts. First, I have only tried one other brand of synthetic reed in modern times and that was the Hartmann Fiberreed Carbon. In fairness to Hartmann, I don't think that I ever found the right strength but the ones that I have are too soft or too hard and difficult for me to control, especially in the upper register and when subtoning.
I got the Legere about a week or so ago and I've been playing it on my Black Widow 8 and I can't really point out any difficulties in response or intonation. I really didn't expect the reed to play as comfortably as it does, so that was a pleasant surprise. The first practice session with it left me all smiles. There's no warm up time for the reed so it plays great as soon as I put on the mouthpiece. I have a "wooden reed" mentality so I was a little bit skeptical about its ability to perform well consistently. Thankfully, I was wrong. Second session, still great.
I normally play Rigotti Gold 2.5 Strong on the BW and I like them a lot, but, as reeds go they're subject to not respond well when the weather/humidity changes. Here in California the dry air wreaks havoc with my reeds at the worst times. Those days are over. No squeaks, chirps or dead sounds any more.
The BW mouthpiece responds great, anyway so I'm ahead of the mouthpiece battle and that part is out of the equation. The sound is more similar to good cane than I've ever experienced with a synthetic. I tried Bari reeds a hundred or so years ago and they were very bright. The Hartmanns, while not bad sounding, are brighter than the Legere.
Maybe this will help someone in their decision to try the Legere. They are expensive at $30 a pop but I've heard that they last a long time. I can just about say with certainty that I'm done with cane.
Edited to add: my little 5-song mini concert went fabulously.