Very easy to fix to a tall fence in my very small garden . No man about the house to help . No drill needed. It was up in a fash . Providing the screws to fit it to fence in future would give it 5 stars.
Easy to build and erect. Weather proof with rain drainage holes. Only problem open to everyone - pidgeons, starlings, squirrels etc so robins, tits, & sparrows have to be quick!