I have no idea what to think!
I have just completed reading the novel as homework for a Humanities class at my college. I really did like the book quite a bit! The nature of the class was to compare things like the literary, scientific, artistic, intellectual atmospheres of different time periods of Western history (Romanticism- Frankenstein.)
I admit that some of jabs at the book made me laugh (I especially thought the photo-manipulated portrait of his creature was pricelessly funny.)
The love letter, though your intention obvious, bugged me ever so slightly... definitely killed whatever seriousness that specific letter held within the book!