Yes that bass is a super thing; I really liked the heavy guitars which really make the chorus take off. The single line riffage is great too (in the lower register it works so well - though there is a part around 1'52" which to me seemed a bit too near the vocal).
I love the way you take both the negative of winter (I also don't like it at all) and the positive of SJ but they both don't matter compared to your present. And the title line and concept is fabulous. Quite the compliment, and a fantastic happy song but without a hint of cliche or derivativeness.
