Stayed here with boyfriend for 7 nights. Right from the word go we were made to feel very welcome and at home. The Riad is small with only 6 rooms so its very relaxed and service feels personal. The rooms were really well decorated & great ensuite. Felt very at ease about security of the room.
As for the January climate - we were lucky to have 5/7 days of sun, but it was cold and wet on the other two. The Riad has plenty of heaters though and a cover over the courtyard during winter so it can still be fully enjoyed. The split level roof terrace was a great place for sunbathing and reading, whilst downstairs there are areas to sit in and around the courtyard and a lounge area with an open fire in the evenings.
We had dinner in the Riad twice when we stayed - the food was fantastic - the best we experienced, and tables are set up in the central courtyard - candles and rose petals, great service, and although they don't serve alcohol at the Riad, you can buy wine, etc from the new town area nearby for meals or drinks on the roof terrace.
The breakfasts are fantastic - fresh fruit, juice, coffee, eggs and pastries, etc - either in the courtyard or in the sun on the roof terrace.
The location is great - 10-15 min walk to the main square, and a good place to walk to & experience the new town too. Easy to find as well (once you've been shown the first time!). Would recommend booking the transfer with the hotel. The guys loitering in the nearby alley should not be an intimidation either (as i read previously) - all they're interested in is getting free wifi!
I would thoroughly recommend the Riad Altair for your visit - it is both a special treat to stay here, as well as feeling as comfortable & relaxed as home - a refuge from the madness of the city & its souks!