This is the best anthology I know of the period, with other contenders out of print (unless there are new ones I don't know about). The most challenging thing is probably that the poems are left, as much as possible, in their original language, spelling, etc. But there are things to like about that, too, i.e. that, in a period when such things as spelling had not been regularized, there are tools a poet might have that differ from what one has in a language that is more settled. I.e. with what a modern poet has called "the Elizabethan care for the sound of syllables," how one might develop near rhymes and sight rhymes (and the bulk of poetry of this period is rhyming poetry) is multiplied.
One true gem in this anthology, not found in all, is Sir Walter Ralegh's "The 21th: and last booke of the Ocean to Scinthia." I think this is one of the great poems of the period, yet, because it was discovered somewhat more recently, it's not yet nearly as well know as it should be.
I understand one reviewer's concern that perhaps an organization by author might have been easier to fathom, but the organization by theme makes sense to me, too, and they are the key themes of the period, and no matter, the contents and indexing are so good that it is easy to find any poem in the book for whatever reason one wants to read it. I've been reading in and through and around the book for a year now, and I love it.