There are a few compilations of this band but this could well be the best wrestling the title away from 'All the Best'. At 42 tracks it's comprehensive and for a fiver it's excellent value. Alternative Ulster, At the Edge, Just Fade Away, Guitar and Drum and, of course, Suspect Device are worth the price of admission alone.
A generous selection from the glory years plus the cherrys picked from later material (and some of these are real gems).
If you like witty, rough edged but melodic punk then SLF are for you.
Suggest this CD as a starting point to SLF then Inflammable Material, Nobody's Heroes, Hanx and Guitar and Drum. Catch them live if you get the opportunity.