Nice review and welcome! Can't speak for anyone else, but "How Will You Go" is every bit of a classic to my ears. It's my favorite Finn Bros. song bar none.
No doubting its quality, I suspect for many of us it has simply become buried amongst the gold mine of Finn Bros melodies, whilst it never had the singles chart success to reach the masses directly. I was about 10 deep with the slightly more casual crowd, singing my guts out to it and nobody else seemed to know the lyrics.