Here is the link that Tink was referring to: "A DLR Guide for WDW Vets"
www.disboards.com/showthread.php?t=1162599
I think the key thing to getting the most out of your DLR visit is to manage your expectations. Yes, WDW is much larger, has more parks, more dining, more Disney hotels, and more things to do outside the parks. WDW offers a much more encompassing vacation experience. It is tempting for someone accustomed to this to conclude "WDW is the only way to experience Disney". My response is, "Who says?".
DLR is not WDW and does not offer the full resort feel of WDW. But it does offer other things you cannot experience at WDW, and a type of experience that is different. If you can put aside the mindset that WDW is
the only way to experience Disney, you will have a great time at DLR.
You are aware of areas where DLR falls short of WDW. Here are some areas where it exceeds WDW:
1. Close proximity of hotels to parks reduces transportation time to almost zero. No buses, no boats, no trams. Easy to take breaks. Easier to spend more hours inside the parks.
2. Close proximity of DL and DCA makes parkhopping easy and fast.
3. Better weather year round, especially in the summer. Less rain, almost no humidity.
4. Better shows, IMO. The Remember Dreams Come True fireworks/laser/special effects show is better than anything at WDW and far better than Wishes. The Aladdin stage show is excellent and better than any of the stage shows I saw at WDW in 2006. I have not yet seen Nemo at AK so cannot compare to that. Fantasmic at DL is better than the one at MGM, IMO.
5. Larger concentration of rides. DLR's two parks have almost as many rides, and almost as many headliners, as WDW's four parks put together.
Just be careful with the timing of your visit. At WDW you can go off-season and still have access to shows and fireworks. At DLR shows and fireworks are scaled back during off-season. Hence to see some of the excellent shows during off-season you will need to overlap a few days over weekends. But the crowd differences between weekends and weekdays at DLR is much larger than at WDW, so your off-season weekends will look a lot like high season. So in order to see the shows in off season you will need to overlap some high season-like weekends, which defeats the purpose of going during off season. So watch out for that.