I have owned and reviewed (for Dagogo.com) both Legacy and Salk speakers. I am currently finishing up a review of a Salk speaker, which will be revealed at the publication. Both companies give a great amount of value per dollar spent, among the best of N. American mfgrs, imo.
Legacy does not make a "6 or 7 way" speaker, and "everything sounded the same" applies to all speakers, as they cannot change their physical design. The character of the speaker is a different matter, and one may prefer it or not. Neither of these speaker brands make everything sound the same; they are both capable of presenting music with its wide palate of performances.
In general, the Salk drivers and crossover tuning is toward the warmer side, and the Legacy toward the cooler side, but they do not stray far from appropriate neutrality. Neither is harsh or etched if set up in a system properly. If there is stridency or wooly/flabby low end, it is due to 1. poor equipment, 2. placement issues, or 3. unoptimized setup/system matching. Salk's speaker line is not as dominating, as large and with extended LF, as Legacy, but both have good specifications for frequency response.
Pay close attention to amp selection; you can ruin the beauty of any speaker with a sloppy, cold or underpowered amp.
I do not hesitate to recommend either brand for building a fine system at a reasonable price point. Watch in the nearer future for an amp review used with both brands that can drive them sensationally well.