This was fairly easy to assemble. You will 100 need 4 18x18” stones to weigh this down (per the enclosed instructions), which adds an extra 30 to the cost. The wind definitely catches the umbrella, and we have been concerned many times it would fall over (it hasn’t, thanks to the weighted stones we purchased).  The wind means that the umbrella top moved a lot (inconsistent coverage). Solar lights work nicely but don’t illuminate a ton.