Not boutique.
Rather than stay at the hard rock hotel I decided on the ACME for 5 nights, based on the Stella reviews on here. All through my stay I kept wishing id stayed at the hard rock. Who on earth thought to call it ACME, a silly name, I just don’t get it. Appearance wise it doesn’t stand out and its right next to a grotty hostel. I walked past it twice when trying to find it. The check-in area is literally a room and a desk but hey its cool as it has graffiti on the walls to draw you attention away!
I was assured id be upgraded when I checked in however they couldn’t as the manager wasn’t there. I emailed him and had no reply. My room was a king on 15th floor, very cramped sidewise even though it was their biggest king. Two people would struggle to move around each other.
The water pressure is poor, the tap and shower dribble, very disappointing as it’s a lovely styled bathroom. Hairdryer barely dries you, it’s pathetic. The air-con is also poor, very noisy and doesn’t give off much cool air. What annoyed me is that they advertise super fast blazing internet. This doesn’t exist, just wifi that’s only ok. I enquired at reception and the guy didn’t know what I was talking about! Also, there is no ‘wireless audio system via a bowers and Wilkins system’ like they advertise. I had a small cheap iPod dock. I had one window that looked into someone else’s room so I couldn’t have the blind up so it felt dark 24/7. The TV channels are also poor, no HBO or movies, just a basic cable package. Breakfast is basically a holiday inn express style buffet, good luck finding a table to sit. I sat on some stairs. In the room there is nowhere to put your luggage and no closet! Just wire racks with 3 hangers either size! 
Overall I was hugely disappointed and will not be going back, I paid allot of money, this is no way a boutique hotel. It is a glorified holiday inn express with nicer fittings and fixtures. Start scratching under the surface a bit and you’ll see for yourself what I mean.