According to the owner, what started as a rather creative concept ended up becoming more a feat of engineering: books in such multitude actually weigh an awful bloody lot. The bookish among us would notice the books, the mechanically inclined the reinforced steel girders supporting their weight while the Artful Dodger would not fail to use the opportunity to pick all of their pockets.
Presuming you're not worried about a Sword of Damocles style death by tumbling tome, taking a seat at Blac Café may well be a fine experience. Possibly it could be disappointing. My ambivalence is based upon two polarising visits to the venue.
At the first sitting I ordered a Wagyu beef burger with sweet potato wedges that at $16 seemed rather steep for a glorified sandwich. Having devoured every last crumb presented though I couldn't argue that it wasn't worth it. Fresh sourdough bread, a wonderfully tender beef patty with all the trimmings and deliciously crispy wedges of the kumara variety was an absolute dream. I got hungry writing that!
Second time around though was not so pleasing – particularly given the high standard previously set. I ordered what was touted as a spring lamb salad with quinoa and pomegranate seeds, dressed with a pomegranate molasses. Unfortunately I got part way through the plate when I realised they must have run out of pomegranate. Not a seed in sight, nor a tart molasses to relieve the dryness of the quinoa and salad leaves.
Had a waiter happened past I could have raised this to their attention however - clearly fearing death by falling book - they had all skedaddled to the bottom story. Instead I merely ate the lamb and picked at the rest of the rabbit food before vacating with a tummy not sated.
To his credit, the owner did put the salad on the house when notified of the slip up. Upon receiving report of an undressed salad he gave a mortified expression that whispered of a chef soon to be receiving a boot somewhere in the middle/rear of their anatomy.
So you are taking something of a gamble should you visit, though having heard the grunts of contentment from each of my fellow diners on two occasions I would presume the dearth of pomegranate was an isolated incident. Perhaps a third and deciding trip should be embarked upon – I shall bring a red pen and correct their spelling of "Black".