The Orchid is a great vape for me and I haven't had any issues with leaking after I got over the learning curve with wicking it.
There is a learning curve for sure with the Orchid, in all its versions. I just got a V4 and it took a little experimentation to figure out how much wick to use (density) and its length in relation to the build deck.
I found, at least with this clone from FastTech, the stainless poly, its easy to overwick it the first time if you're used to a traditional Kayfun build. You have to resist going too dense or too long. I found as a general rule if I can slide the wick back and forth through the coil and I use the edges of the build deck as a guide for length, it seems to work well. The other problem is to not overfill it - it does need a couple of mm of airspace to maintain enough vacuum to keep the juice from flowing down through the air holes.
One annoyance I found with this clone was the bottom fill hole alignment was poor - the tank body blocks a substantial part of the hole when screwed on and its a bugger to fill. I drilled it out on an angle such that I can get the metal syringe tip in now but its still a slow fill. Other than that, its probably in my top 5 favorite tanks to vape for flavor and vapor production.
Its finicky but worth the trouble to figure it out.