This whiteboard is very well designed and constructed for the price. It's maneuverable, sturdy, and comes with accessories. I rated it 5 stars even though I'm not sure if the unit I received was used or not - it arrived with a slightly damaged corner, and the whiteboard surface lacked a film protector, even though it came with a sticker advising to remove the film protector. Considering how big the product is, I opted to keep it instead of exchanging it for an identical replacement, due to the ecological cost of returning it.This whiteboard only has a few disadvantages. First, the height of the whiteboard cannot be adjusted without unscrewing the whiteboard from the support, and reattaching it at higher or lower mounting holes. I don't feel this caveat was mentioned explicitly enough in the product description.Second, the tension clip that prevents the whiteboard from rotating for reversing sides is a little noisy, because it allows the whiteboard surface to shimmy during writing. I think this can be fixed easily enough by padding the tension clip with some extra surface material, like duct tape. Not a big enough deal to irritate me, though.The last disadvantage is that product support for this whiteboard is located in China, and employs people whose grasp of English is tenuous at best. That, and they have a really weird, non-memorable domain name (hntzhwj.com). Although the company name is SUODON and they promise "100% Satisfaction Guaranty (sic)", the support personnel suggested I ask Amazon to replace the defective whiteboard, instead of them just sending me a replacement corner piece.