Stayed at Crest Apartments during the first week of January 2013 with my young family. (Wife and 2 children). Apartments are a little dated, think circa 1990's but very clean, pleasant and functional . The staff are extremely helpful and care about their apartments. Parking is convenient and access is great. I'm a massive fan of Byron Bay because it has a vibe that no other coastal NSW town has. If anything The Crest added to the great vibe by having a very tranquil and well thought out pool area with mature gardens. My children loved the pool which stayed at a constant 26 to 28 degrees. We stayed in Apartment 2 which had great access to Shirley Street but our room which was west facing onto Shirley Street can get a little loud from passing traffic and the occasional drunk reveler. It also can get a little hot as the lounge-room is the only room with an air-conditioner via a split system. There are however fans in each bedroom which help during the hot evenings.
WiFi access can be a little frustrating as you need to do a cumbersome log in and log out routine, however we were given 12 hours free which was plentiful. I would definitely stay here again but maybe away from the Shirley Street side.More