These authors have a great writing style. This is a subject matter that has a potential to be very, very dry but the authors have somehow made it enjoyable. If they get into hardcore calculations and derivations that you might be a little rusty on, they anticipate that (I assume from lots of students' feedback) and include appendixes at the end of each chapter so that you don't need to run off and find the corresponding chapter in one of your math/physics/chemistry textbooks. They also have a very useful nomenclature guide (in the first book only) in case you keep forgetting what certain symbols mean and what units they are in. The footnotes are great and keep things from getting too dry. Overall, I would definitely recommend these three books.
Note: Unless you have a fetish for hard covers, get the paperbacks; they're half the cost. When I bought these books from amazon.com, it was very confusing to figure out which books to get. Here are the ISBN's of each of the three books in the series. This will save you some headache:
Electrochemistry 1: Ionics
ISBN: 0306455552 (paperback)
Electrochemistry 2A: Fundamentals of Electrodics
ISBN: 0306461676 (paperback)
Electrochemistry 2B: Electrodics in Chemistry, Engineering, Biology, and Environmental Science
ISBN: 0306463253 (paperback)