I had a great stay at Ember in the dorm style room.
The indoor shared space offered plenty of seating, morning tea, and plenty of outlets for those of you interested in working from the space. I wouldn't recommend taking any meetings or calls in this space, but I think that's expected given that its a hostel.
The outdoor space was very nice as well, I never took advantage of it but a few people were enjoying the hot tub during my stay.
The dorm style room had fantastic AC and offered space for you to store your stuff throughout your stay. Make sure to bring a lock.
The location of the hostel was great, plenty to walk to and just a shorty distance from the Cherry Creek Trail. I highly recommend this spot.