First, I will say that I like the Birsdeye concept and use the images I downloaded quite a bit.
Now....
Basecamp itself is a not all that handy program, (is there some way to get the Birdseye button on the toolbar in 4.0.1?).
The process of pushing B(or however you do it), wait, seeing my unit and how much free space it has, click next, wait for the list of available products, click next is a pain in the rump.
Using the bounding box shouldn't be too terrible, except that it never seems to be same size, in MB. I swear that it changes for each map, or when I open BC with a different map from when I opened it last time, something! And yes, I am aware that it changes with the scale. Which leads me to ask, why is the bounding box allowed to cover more than the maximum allowable size when I zoom out? Shouldn't it just stop at whatever size is required to be 232 MB?
I very early on in my subscription learned that using the bounding box on any sort of area that is "diagonal", would take up way more space than needed and started using the pencil tool. Very handy, except that I still had to use the bounding box to determine the maximum area, because, every time you click, "download", the program draws the bounding box around your pencil tool lines, and if THAT is beyond 232 MB, BE will just knock down the quality of your area, without warning, and start downloading.
If lucky enough to find a map scale/bounding box size you are happy with it is still too difficult to be sure to get everything you want without little slivers missed or a large amount of overlap without zooming in on a corner of the box.
I suspect that Garmin wont in order to keep people from trying to download the entire planet, but dividing the world up into squares and just letting me choose what squares I wanted would be welcome.
Of course this is all when BC/BE are working nicely. I've had it where these things have had my quad core 3.2GHZ with 8GB of ram crying on it's knees! Sometimes, minutes, literally, minutes, to use the hand tool to move the bounding box....ONCE!
Where the images are good, they are generally OK. Where the images are bad, they often look like they were drawn with pencil crayons. This is a limitation of where Garmin gets their images from I know, but those images are still a part of the Birdseye package and must be considered.
Mr Kaswa