With the new R6 update to XS-1, I am in sampler heaven. The most important addition, for me, is that the midi channel I've selected for an instrument holds when I change to a different soundfount, rather than jumping back to a default setting like it did before. This makes it super-fast and easy to audition tons of different instruments to find just the right one. The samples load fast, and XS-1 responds well to real-time switching.
XS-1 is making it possible for me to realize the value of the 6,000 or so soundfonts I have acquired. Even some of those that I didn't think sounded very good can be made usable by tweaking the settings in XS-1.
I use XS-1 more than any other plugin, and it's paid for itself many times over. Great work, Oskari!