I had already bought the smaller, square brother to this planter and once again am very impressed!  It arrives beautifully assembled, so no struggling with instructions in 20 languages, none of which make sense,  It comes firmly lined throughout with semipermeable membrane so soil does not get waterlogged yet roots are kept moist.   The base is slightly raised from the ground so water can drain and the edges are gently rounded so you do not graze your shins if you walk into it.  Altogether a well designed planter at an amazing price.  The smooth wood can be treated with preservative or colour if you wish.  A great purchase!