Relax a bit..
BACCH4Mac Intro was already available for around 1000 euros. Then the windows plugin came with a limited time offer for just under half the price. The Windows plugin does the same as the BACCH4Mac Intro software, but the latter can be expanded with other modules. I first tried the Windows plugin for free and because I liked it I bought the BACCH4Mac Intro.
By well implemented I mean that the effect increases as you have more direct sound and fewer reflections. The better you manage this, the greater the effect. The effect with regular LS was relatively small for me at first, and depended on the music. Nevertheless, I immediately thought it was worth all the money.
Then I applied much more absorption and the effect increased considerably.
Later I bought large dipole ribbon speakers with much more direct sound and less reflections and much more absorption (behind the LS) and the effect of BACCH4Mac Intro increased enormously. So much that for me (and everyone must know for themselves) it is more than worth the money. Especially, as I said, when you see what a network player costs, or what you spend on LS.