All views I`ve read have been very positive on the whole. Bear in mind that its "older" technology in some respects - its been superceded by the E85, which, if you shop around can be picked up for much less than £500 (which is what the HS2 is still going for in some places). Still a good machine though.
If by swap you mean at no cost to yourself, I`d go for it. If you`re shelling out, I`d pay the slight difference and go for the newer E-85 which has hi speed dubbing to disk (HS2 doesn`t) and twice the HD size (for more info on the E-85, see the other thread on here).
http://www.electromancer.com/artists/flip_martian