Yes it was fun, not too hard I thought. I was rather expecting the five letters (hidden consecutively in the grid) to make a word rather then be random....asking too much I guess! Otherwise no complaints.
I took it that the point (of the 5 letters not making a real word) was that one had to work out all of the 5 augmented words, there was no possibility of getting 3 or 4 and then guessing at a real 5 letter word.