I had the use of one for 6 months while my pal was in Iraq. As mentioned the rotary damper is supposed to be dodgy but the one I had was fitted with a Maxton rear shock. Awesome fun bike and one of the easiest to wheelie if thats your bag
They sound gorgeous with a pair of race cans
Theres something organic feeling about twins and that doesnt get much better than on a TLR IMO