I love everything about the M1 chip. Its fast, fluid, and is an impressive look at the future of Apple machines. Unfortunately, and I thought this would be the case, I just can't deal with the small size of the 13" MBP. I've always used either the 15" and most recently 16" and the 13" is just uncomfortable for me to hold on my lap and type on it. Its much too narrow for me and requires me to sit in certain positions to make it comfortable on my lap. The 16" just sits there and for me is much more comfortable. I also enjoy the larger screen of the 16" and didn't like looking at the 13" screen nearly as much.
Performance wise though, the M1 is legit and I love it. I'll definitely be moving to it when they release a 16" version.