I love it!
Between me and my brother, our kids are 4, 5, 6, and (almost) 7.
My DS7 (HG) knew all upper/lowercase letters/sounds before age 2, then didn't read till after age 5. He writes now, but not well, and that took some doing.
Neice 6 (who does a lot of very smart stuff) still doesn't know the sounds of all 26 letters. However, she has better handwriting than me, and can spell/write a few hundred words -- for almost 2 years now, she asks her mom for a list of words to type, and she types/writes for long periods of time (no she's not autistic). So she can write me a birthday card, but can't read a kindergarten-level book.
DD5 finally learned all letters/sounds last year; was sounding out words at 3 1/2 before she knew the sounds the rest of the letters made. Around 4 - 4 1/2 she was writing stuff similar to the original post; most "words" had at least 2-3 letters. Also, the "words" were separate, and scattered around the paper at random.
Neice 4, learned most of the letter sounds last week all of a sudden.
Kids are all so different, and each one fascinating. Isn't it fun to see what comes next?!
