My very first soap was also 100% coconut oil with 20% superfat. It is just barely old enough to be tested (about a month) and I don't find it drying.
I made a different soap from 50% lard, 30% olive oil, 15% coconut oil and 5% castor oil with 7% superfat. I thought this was a more gentle formula, but as of now I actually find the coconut soap to be less drying. This may change with a few more weeks of curing though, especially since the second soap is a few days younger.
But everybody has different skin. I have read pretty much every possible opinion about the 100% coconut soap. Some think it's the best soap they ever had, others say it made their skin fall off. You may be in either group or somewhere in the middle - the only way to find out is to try it.
What I really like about it is the way it foams. I tend to get really greasy hair if I don't shower every day and I've had shampoos that refused to foam because of all the grease. The coconut soap doesn't even seem to be bothered, it always produces huge amounts of foam within seconds.
It has also become very hard, similar to candle wax. I let it gel but honestly, I wish I hadn't. Now it's somewhat semi-translucent and opalescent so it has a blue-grayish tone that I really don't like. My third soap (lard/coconut/castor) has a beautiful shiny white because I didn't let it gel.