Hi Locus I did furnish quite a lot of my house with pieces purchased from Shopee. Ranging from shoeracks to some larger sized moveable wardrobes. Based on my experience there quality of the items are considered to be pretty good, overall they are good quality and value for their price.
Also considering that the shipping fees are low (usually free) and with the included cash back, it sweetens the deal even more. Another benefit for me is that it delivers to my house, which helps for them being bulky peices.
One 'con' which i can think of is it might be harder to get a resolution from the seller if any of the pieces are damaged, considering their size it could be hard to send back. And i have seen feedback from a small number of users that some sellers simply ignores post-sales support. However Shopee themselves do provide pretty good customer support for returns/refunds.
Let us know how it goes! I am also considering getting a new super single bed set for our guest bedroom from Shopee