I have been playing around a little (very little really) with the Warlocks in 5e. My son has made one and I have two that I started but have not gotten back too.
Though I like what I have played with so far. The 5e Warlock is a nice mix of the 4e Warlock and even a little bit of the 4e Witch.
Concept wise I can build a number of "witch like" characters and can build a number of other sorts of warlocks and witches. Again, the class is so nicely set-up that their is no real need for me to build a witch for 5e.
I have a couple more experiments with the 5e warlock to try out, but so far so good.
This video came up in my feeds as something that I would like and you know what, I did.
It is too simple for anyone reading this blog, but still a nice walk through.