MrTipple (7490) - London, Greater London, ENGLAND - AUG 13, 2017
Dark chocolate, dark, toasted malts, dark berries. Hazy, dark brown, small, frothy, white head. Light sweet. More sweet, dark toasted malts, tangy fruits, soft carbonation, medium bodied. Boring and substandard. Cask at GBBF17, Kensington Olympia. Beerhunter111 (23987) - Beerland, GERMANY - AUG 10, 2017
Sampled @ GBBF 2017, Day 3. A black beer with a small tan head. Aroma of Coffee, dark toasted malt. Taste of roasted bitter malt, coffee, Chocolate, some liquorice. Beese (3408) - Watford, Hertfordshire, ENGLAND - AUG 8, 2017
Cask at The Great British Beer Festival 2017, Kensington Olympia. A slight tartness to it, which probably isn't right. Otherwise roast flavours and pleasant bitterness. anders37 (28172) - Malmö, SWEDEN - NOV 27, 2015
Cask gravity @ GBBF 2015. Pours a black color with a small off-white head. Has a roasted malty chocolate aroma. Roasted malty chocolate flavor with hints of caramel. Has a roasted malty chocolate and caramel finish. fonefan (53431) - VestJylland, DENMARK - NOV 20, 2015
Theydon_Bois (22092) - Hazlemere, the lower Xhitlerns, Buckinghamshire, ENGLAND - OCT 2, 2015
Cask (gravity) @ GBBF 2015, Great British Beer Festival, London Olympia, Hammersmith Road, London, England W14 8UX.
[ As Boulder Beer House Porter ].
Clear dark black brown color with a small to average, fizzy, fair lacing, mostly diminishing, off-white head. Aroma is moderate malty, roasted, spicy, dark malt. Flavor is moderate sweet with a long duration, spicy, roasted, mint. Body is medium, texture is oily, carbonation is soft to flat. 
Cask at GBBF ’15, day 1, 11/08/15.
Extremely Dark Mahogany Brown With A Decent Off White Cap.
Nose is earthy roast, cocoa powder, biscuit, light mint.
Taste comprises earthy roast, toffee, chocolate, pinch of spice.
Medium bodied, fine carbonation, semi drying close.
Adequate porter. Desverger (14394) - Copenhagen, DENMARK - AUG 31, 2015
[email protected]The_Osprey (10000) - Richmond, Greater London, ENGLAND - AUG 31, 2015
2015, Olympia, London - pours black with a tan head. Aroma and taste is medium sweet and roasted malty, toasty malty notes, with chocolate, coffee, caramel, cocoa, some dark dried fruit, dry roasty finish.
UPDATED: OCT 22, 2017 yespr (49523) - Copenhagen O, DENMARK - AUG 30, 2015
August 2015 - Gravity cask at GBBF. Cola black, red hue, no real head. Aroma is blackcurrant, flowery, soap. Body is medium, soft carbonation, smooth. Taste is soapy, laundry powder, powdery cocoa, soft lavender. Like chocolate soap. Pretty interesting, somehow works. (3.6)
August 2017 - Cask, gravity dispense, at GBBF 2017, Kensington Olympia. As 'Boulder Beer House Porter'. Opaque black, still with a foamy brown head. Aroma is ashy, molasses. Body is smooth with soft carbonation. Taste is tangy raisin, liquorice and apple, fruity. A little unusual in character for a porter. Thinking that the condition wasn't right this year. (6-4-5-3-12=3.0)
From cask. Pours hazy brown to black with a small tan head. Aroma is roasted malty, chocolate and dark malty. Smooth, light herbal. Roasted. Dark malty. Bitter. Chocolate and dry finish. Leighton (23401) - London, Greater London, ENGLAND - AUG 28, 2015
Cask at GBBF 2015, day 1 - London. Pours clear ruddy brown with a light, tan cream head. The nose holds light chocolate and...mint? Light to medium sweet flavor, cooling and minty, with light roast and chocolate. Light bodied with fine carbonation. More cooling mint in the finish, with mild bitter earth and further cocoa notes. Not bad.