A 7,000′ reel just like this has been sitting in the drive shed for a while now, waiting to be tested. Ro-Drip, from John Deere, is one brand of drip tape. I can’t speak to how it compares with other drip tape, but I have heard it highly recommended. In any case, drip irrigation has serious advantages over other methods—watering with a hose, soaker hoses, sprinklers—for any size garden. It is super-efficient, the usual figure being 70% better water use than sprinklers. It also operates at low pressure, from under 10psi to around 20 max, so it can even be gravity fed from a raised container, a barrel or something much larger. It can be used on the surface, or buried.