Player1 The Faber stuff is interesting in the beginning because it's all new. It gets just as terribly boring as the Alfred's stuff in short order. I'm on Faber's Adult Book 3B and trust me, it's just awful.
The problem is that the book doesn't give you a break from theory or practice. There's nothing in there for "fun" so everything is geared toward you learning instead of just playing.
So, some advise from a Faber student: Find material outside the lesson book and learn it. I'd recommend NOT using the companion books because they're just as horrible as the lesson book.
I ordered a couple of song books to provide some additional material that, although still beginner level, will give me complete pieces to work on. I specifically did not get the Faber song books. One is 42 Famous Classics Arranged for Easy Piano, by Allan Small. It has some good reviews.
I'm still enjoying Faber though, currently at page 79, Simple Gifts. I pulled out my Alfred books and reviewed them, I still think Faber is far ahead with some of its selections. One thing that I disliked about Alfred were the arrangements with those honking G7 and D7 chords that found their way into so many of the early tunes.