I haven't heard the Spirit pres. Best to do a search on this Board and see what others have said about them. I have only read that those who have heard both the Behringer and the Mackie pres almost always prefer the Mackie, and those who have heard both the Mackie and the Spirit pres usually prefer the Spirit.
I suspect the Spirit pres are measurably better than the Behringer. You may hear it and feel different, though. Judging pres is a fairly subjective thing anyway. One man's opinion of a pre might be that it has a clear, extended, and airy top end while to another person it sounds brite, overly hyped, and unusable on most sources. One man's opinion of a different pre might be that it has a warm and silky sound while to another it is too dark and muddy. If you could go somewhere and do your own comparison that would help you.