I've seen Gamarjobat each year for the last few years and they always provide good entertainment with no dialogue. This is their last year in Edinburgh before they head of to Broadway and their own show on BBC 3. In all honesty their best show was Rock 'n' Roll Penguin last year which has less storytelling (yes, story telling with no dialogue) and more performance to the audience at the beginning. This year the split is more in favour of The Western story which takes up at least half of the show. It is good but a little bit slow and probably not as entertaining as their Rocky tribute a few years ago. That said, if you've never seen them go and catch them before you lose your chance to.
7 out of 10 and 'arigato gozaimasu' for all the memories.