We stayed at Haus Alpa for one week in the top floor apartment Chalet Louisa through ski total. The transfer from the airport is about 3 hours via coach and then train into Zermatt. The coach was clean and comfortable, the rep was very good and spent time speaking to all during the transfer, arranging lift passes etc. I would recommend using Swiss.com for lift passes as they are cheaper especially if booked for a group. Upon arrival to our apartment our chalet girl Catherine met us to take us up to the apartment. Please note that there is a good walk up to the chalet, this could prove challenging for those let mobile.
The chalet was nice and clean with ample space for the 6 of us. The food throughout the week was good and we enjoyed afternoon tea daily. The spa area was very good although it was busy at times and on our first day the steam and sauna hadn't been turned on! Once reported to the Chalet girl there were no further issues. The beds were comfortable and rooms cleaned daily.
My only negative comment about these chalets is the music systems, you can hear other chalets playing their music! This can be annoying if you want to have a snooze or not be woken up when they return from the pub!
I would recommend Chalet Louisa and would return in the future.