Had one for a few weeks and sold it on here.
It's very handy, small enough to not notice it in the bag, as much power as you would expect from a small flash, bounce capable and comes with a diffuser. One of the handiest things if you are travelling with it is that batteries can be charged inside the flash using a micro usb lead.
So after all that you probably wonder why I sold it??
I've got lots of Yongnuo's which I use off camera and I also have a nissin I40. I purchased the Meike for a holiday and the only reason I had to keep it on return would have been to use it attached to the camera via an OC3 lead for TTL macro shots, that's when I discovered that for some strange reason it will not work in TTL mode when using the cable.