For £50 it's a really good purchase, ideal for home working if you have small rooms and no dedicated home office room. 

I use medium sized laptop + 22inch monitor and there's plenty of space, in my photo if you're a pen and paper note taker you'd be able to do that in the space in front of the monitor, to give an idea of the dimensions. 

I think the table top is MDF with a vinyl /plastic coverm, which is smooth and works well using a mouse.

I assemble and take it apart every day and it takes about 1 minute, you basically just need to clip the top onto the frame, requires a little force on each corner but anyone should easily be able to do it. 

Packs down flat as shown in the photos so can be stored up against a wall, or possibly in a cupboard if you have space.