I was looking for this type of information and was a bit surprised to recognize the name of the original author. If he is who I am quite certain he is, he has ran about 10-15 pathfinder games for me when I lived on his side of the country, and I can say without hesitation he is one of the best DMs I have played under.
One of the reasons for this is because he constantly keeps a very healthy pace in everything that happens and fairly adjudicates “new” rules on the fly quickly…when they are provided quickly. I can’t count how many times I have tried to do something a little obscure or some complex combination and he has said “Can you show it to me?” I pull up a spell off an app on my phone with a couple of clicks or point to a paragraph on a PDF, he gives it a quick glance and we continue to have a lot of fun in his games. It takes so little time to do it with this tech, I started readying things DMs might want to see prior to asking just in case.
I have created a few characters for 5e, and have started playing in a homebrew campaign. While I am having fun with it, the pacing and user friendliness of 5e just sucks so horribly in comparison when you need to see actual text. An actual book has become a very inefficient way to find information scattered amongst lots of other somewhat similar information.
In character creation, I flip pages back and forth hundreds of times. I am repeatedly thinking “If I just had a search bar or another window I would be done with this. I used to have fun making characters.” Also while we are at the table, everything routinely screeches to a halt when someone tries to look something up. We are all fairly new to this set of rules, so even with the limited amount available now it happens a fair amount. Every time I see someone open up to the index section, I think “I wonder what is happening with XXXXXX not related to the game, I know I have several minutes to devote attention to that.”
I have read a lot of stuff from WotC claiming they want this game to be easy to learn and fast to play. If physical books………….and gd twitter posts (but that is another argument)……are how you want people to know your game, you can’t claim to put a premium on ease of playability.
I too really want to like this game better than I do Pathfinder (side issue with some of their staff I find distasteful.) But to do that, it needs to be easy to maneuver and capable of keeping a solid pace in the face of massive options and mechanics.