I've been in a couple of times. A small shop (probably the same size as the average bedroom), but tidy and neat. Helpful staff.

Unfortunately, I did have a bad experience with them. I took in my power adapter as it had become faulty. I gave it to the staff member and he told me that it would be back in less than a week. However, the staff member never submitted my warranty claim and never sent my power adapter in for repairs. I came back a week and a half later and they gave me a new one on the spot, and apologised for what happened (that staff member has since left, so service shouldn't be a problem still I hope). I love the MAC1 stores and I hope that staff member was just a rotten apple amongst other good ones. I still recommend them and I still prefer them to Next Byte, which is down the street and around the corner from them.