Sound like we'll all be there together. We've went in Feb 02. We loved it so much that we went back the second week of Feb. 03 with plans to go back the first week of Feb this year ("free trip"... AP reasons... If you go once per year(or more) look into this option), due to some changed at work we had to bump it up a week... So we will also be there Jan. 24th through the 31st. I'm assuming it will be about the same (weather and crowd levels).
A couple of notes from my planner. (1) If you have an AP you can get a free lanyard at AK on the 24th,25th,31st or Feb 1st. (2) Fantasmic will be closing Jan 26 im not sure when it reopens, I just know that it is after we head home. (3) according to disneyworld.com there will be a spectromagic parade on Tuesday the 27th. (there are parades on the weekend too, but this is the only one we will be able to catch(depending on what time we arrive saturday))
Also. There are some cons: ride closures, shorter versions of some shows, and shorter hours. But the pros (IMO) far outweigh the cons: We were able to ride any ride with very minimal waits, many were walk-ons. Our meet with many of the characters became our own personal photo shoots, with no one waiting behind us. We saw the MK parade twice, and both times my son was pulled to be in them (once with the lost boys from Peter Pan and once right in from of the big man er.. Mouse himself) We were able to to everything on the old to do list. The weather has been great both times also.