I wonder if Peart's few guest appearances single-handedly put them on prog fans' maps. I think Nick just posted about it a few pages ago when I was busier, and I think it came up in ariich's roulette last year when I sent them as a post-roulette submission.
In my case, I was a fan of the band (well, mostly the Everything You Want album) before I even knew about the Scannell-Peart friendship/collaboration. Even in Italy, the title-track of that album was very popular, back in 1999. Fast forward a few years, now in the US...I remember finding Burning the Days as a used CD in my favorite record store when I was in grad school. I got that one, and was delighted to find out Peart was guesting. It's a very good album. It does feel like the tracks with Peart are a tad more adventurous (and heavier too). Echoes from the Underground is good too, although I didn't get into it as much.