I was thrilled by the SL3s clarity and decent bass as a much younger and far less experienced listener. I learned over the years and wanted more than the SL3s could provide as I became a better listener. That’s why I bought the Sapphires, and then in ‘16 the more sophisticated, used D2s.
The SL3s were revealing of amplification and I needed to be careful with the match. I had to part with a nice Threshold T-200 power amp years ago because the pairing drove you out of the room. (The Sapphires would probably have loved it.) Back then I enjoyed the SL3s for audio, and even now they’ll do fine. With the Logos electrostatic/hybrid center, the three could make up my front wall for the home theater.
All said, for musical purposes, you could probably find a better, more well-rounded pair of used speakers for $1500, I guess; it may well depend on taste. Good luck.