we stayed at le tremplin at end of jan 2012 and thought it was great. we were only in morzine for a long weekend at short notice, and being close to the slopes was essential and the le tremplin couldnt be closer - 15 metres across the road to the main lift up the le pleney! we paid slightly more to have a larger room, which included a second small room with two additional beds in (would have been perfect if we hadnt left kids at home!). the rooms are basic, but perfectly adequate for a short ski trip and the price was very reasonable (half what many other 3* hotels were asking for). warm with hot water. breakfast was fine and the staff were nice and friendly. we arrived early at 11am before our room was ready and they let us change downstairs in the sauna suite so we could go out on the slopes asap. the only thing to watch out for is that the bar beneath the hotel is very busy and noisey some nights (Friday when we were there) which might not appeal to everyone, but only until mid-evening when the music stopped so didnt stop us sleeping. i would consider staying there again if i were going back to morzine.
