I like daily chess too, however it's easier to be cheated. Everytime I finish a daily game, I put it to the SF analysis and sometimes I see very suspicious things.
I love day move chess!
If anyone uses an opening book against me, they will be lost when I leave book on move 4. Worrying about that is like worrying about computer cheats, whom even the blitz players worry about. At least here you have time to muscle the computer and fully appreciate its moves.

agreed OP daily chess is a great way to play the game in a relaxed manner but when you look at your positions you really get the time to go into them in depth and hopefully make useful moves

Those worried about engine-users: Personally, I've had just one daily opponent where I wondered if he cheated, the rest made enough Inaccuracy or Mistake or Blunder moves in the chess.com analysis indexes to convince me they were honest - as my games surely proved to them. Additionally, I run my games through Stockfish 8+ POPCNT (the latest development version from here: http://abrok.eu/stockfish/) at 20 ply on Lucas Chess, which takes about 70 seconds/half-move on my 3.2 GHz, quad-core computer, and get a good look at how Stockfish rated the top 15 possible moves each half-move. My opponents didn't cheat - although one could never prove a one-move cheat.

Personally, I love daily chess and like to use it to help me improve my opening play. I get to consider a number of different variations at the master level as well as those who jump out of the book early.
Spending so much extra time on each move helps me remember the move sequence and the reasons for it. The chess.com Opening Explorer will take you all the way to the end of master games, but I make it a personal to not use it beyond 13 moves and most of the time we're out of the book, or at least the main lines, around move 8 in 1700-1900 rated players games.

"5. I learned that if the post game auto analysis says all my moves are excellent, then I don't get any feedback from it or even see the stronger moves. However, the position analyzer shows much more. I also have time to write out my thoughts during the game so that later expert analysis is more beneficial."
What is the "position analyzer"?
1. Plenty of time to explore positions for the positional principles I want to practice, and to appreciate just how many moves are possible in a position and how many seem playable at first (40 and 8 in one tactical position).
2. No one has let their timer run out, but if my opponent were to, I win in 24 hours, and can play 3 other opponents at the same time, and can run errands and do other stuff while I wait. Games often go much faster than a day per move, usually ending in a day or two.
4. Very non intrusive. I move when I'm ready. I just looked at a position, realized it was too complex for a quick move, and decided to go eat breakfast first.
5. I learned that if the post game auto analysis says all my moves are excellent, then I don't get any feedback from it or even see the stronger moves. However, the position analyzer shows much more. I also have time to write out my thoughts during the game so that later expert analysis is more beneficial.
6. No slow connection or slow mouse issues.
7. No one has used an engine against me, and even if they did, it would just mean I get to play a deep game against an engine without having to reset up the board all the time.