I suspect these would make great educational aids for schools that can't afford to send classes full of kids down to the Globe; and I enjoyed watching them purely for pleasure; but it's no substitute for actually experiencing a live show at the Globe first-hand.
The problem here is that you are restricted to what the camera allows you to see; and so sometimes, when the action is spread across the stage or around the theatre, the camera has to select a particular subject and the charm of live theatre is having the freedom to choose your subject for yourself. This strips you of that fundamental right; and therefore makes the viewing experience all the lesser for it.
There are some (admittedly rare) problems with audio, as if the microphones don't quite pick up some of the actor's lines as clearly as they should. This isn't a huge problem, as for the most part the audio is fine.
Also, it's quite an expensive box set this. Not sure the price tag is justified considering the limitations of the medium and also some of the technical problems.
Probably if you're a teacher, or you just want to see these plays because you may never have done so; then this is a good buy. Also, consider buying the Othello Globe DVD...it's an astonishingly good production; but that too, alas, also suffers from some minor audio problems.