Can't make much comment on the Tropicanna but can throw in my 2 cents on Anaheim Desert Inn. We have stayed there for all of our 7 trips. The price is hard to beat and the proximity to the park is great. So far I have never been able to find a better deal.
The rooms are large, you can get 2 bathrooms if you go with their largest room, all have a fridge & microwave, and they are clean & comfortable. Beds have always been comfy. The pool is small and parking is limited to one car. They offer basic continental food items. There is a convience store downstairs for anything you might have forgotten. Overall, we have never had any problems.
Not 5 star but works great if you will not be spending lots of time in your room anyway and if you would rather spend big bucks in the park rather than on lodging.
We enjoy being able to make the short walk back to the room midday. We will be heading back there again next year and probably as long as we keep heading back to DL!