Ive had great experience with increasing the mW from stock to 500mW even to the point whereas i now have decently stable signal in places i used to have no connectivity at all.
And in places where i did have decent but not optimal connection the connection has stabilized A lot.
DBi increased by ~20 here.
Its hard to explain why, especially since its only in a one way direction. Perhaps the upload on my ipad is more stable than my download hence why upping the transmit power helped out greatly? Remote desktoping is a whole lot more fluent now, kind of logical i suppose as that is mostly based on downloading the data. But also webpages react alot faster with loading and that does also require uploading data.
Im happy either way