Does it have wheels so it can easily move around?

Sorry, it doesn't. This similar lift-top coffee table with wheels, hope you will like: https://www.homary.com/item/modern-lift-top-coffee-table-multi-functional-table-with-3-drawers-in-walnut-black-41561.html

What is the table height after lift up?

The height of the coffee table lifted up is 28".

What are the overall dimensions of the coffee table?

The overall dimensions are 47.6"L x 23.8"W x 19.1"H.

Is the tabletop moisture resistant?

Like all fine furniture, it is recommended to use coasters to protect the finish.

What is the depth of leg space when the tabletop is open?

The depth of leg space when the tabletop is open is 28".

Does the top surface actually fold down to hide the storage under it?

This lift-top coffee table features a unique design that allows the top to lift up and move forward to create a versatile surface for you to work on projects, browse online, or enjoy a delicious meal all while relaxing from the comfort of your own couch. Beneath the top surface is a hidden storage area.