Formatting in the poetry section makes it nearly unintelligible. The free versions are better in terms of that, so I wouldn't suggest buying this version.

This is a nice, complete collection. The other "Works" available on iBooks for $5.99 is better indexed. By and large, the formatting is adequate, but the poetry is very badly formatted, missing most line breaks. OK for the price, but if you can live with bad formatting and poor indexing, why not just get the free versions?