I love Silver Lake Resort because of its proximity to Disney. There is less traffic on the west side of the property so I prefer the location over the resorts Crossroads (Cypress Pointe, Vistana Resort). It is only about a 5 minute drive to Animal Kingdom.
I stayed there 5 weeks last year. If you book at Silver Lake, try to get a two bedroom unit. The units facing away from the room are very quiet. They seem to be well built and fairly well maintainted. Some of the one bedroom units are lockoffs with a small whirlpool in the room.
The two bedroom units in the new, tall building have a great second bedroom suite. The bedroom is large and the unit has a small (but quiet) refrigerator and its own microwave, coffee pot and good sized bathroom. You can shut the double lockoff doors between the units and virtually soundproof one side from the other.
You can look at the floorplans at
http://www.silverlake.net/villas.htm. The units are not as fancy as some, but to me, the location is more important.
Call first to check on the construction progress. They are adding a few new buildings and you don't want to be there during the day if noisy construction is going on.
I book using Skyauction for around $260 per week. We have annual passes so parking at the parks is free. I have learned that I prefer 6 weeks a year at Disney on a budget instead of 2 weeks on site.
Have a great time!