I can only assume that the glowing reviews for this property were written by guests that stayed at the Camlin during "average" Seattle weather. We found ourselves in Seattle during a heat wave and the Camlin seems to be the only hotel in Seattle without air conditioning. Our room, on the top floor, was like a sauna. The ceiling fan and open windows did little to help. It didn't take long for us to realize that we wouldn't get a wink of sleep in that room because it was so hot (my husband's allergies also started going berserk as soon as we entered the room, as well). The only response we received from the front desk staff was a shrug and a "yeah...we don't have air conditioning" when we registered our discomfort. It didn't seem like we were the first to have such a complaint at the Camlin. Needless to say, we booked a room at another hotel (after first calling a few and asking if they had AC...the answer in every case was "yes," so this is not a Seattle-wide problem).
Also, don't plan on being able to check in early. We arrived about an hour early and were unable to check in. Only after we asked, did they offer to store our bags for us while we wandered the very hot streets for an hour. Oh, and then they had some trouble finding our bags when we were finally allowed into our room.