I have several of those garden hives and they give you the basic set up but you will need to order some supers to go with it as they only send you a couple of brood boxes to get started.
They include an entrance reducer but you will also need a mouse guard for each hive, I also order extra reducers as sometimes they get misplaced.
If you use shims then you can order those as well.
I don't know if you plan to feed your bees but if you do they sell the feeders.
Tools, smoker, protective gear, bottling kits etc.
Just sit down and think about how you are going to keep your bees and what tools would suit you best.
Better to order what you need now while the shipping is free.
I used a solid color stain on mine and its held up well.