I've made dozens of batches of essential oil (mostly oregano, but also thyme, sage and others, depending on what is doing well in my garden) using this set and it works very well. The quality of the oil I'm able to distill is fantastic. I will try making rosewater and other floral waters/hydrosols when those plants are in season.
The quality of the glass is very good. The size is perfect for small-batch distillation. This would be ideal for a school lab to demonstrate the scientific principles of distillation.
The kit is not fully complete, you will need to provide a few additional things to get started.
You will need a water pump and an external water tank (fountain pump in a 5gal bucket works fine).
You will need a way to elevate the hotplate about 10cm. A lab jack is ideal, but a few bricks works fine as well.
The included tubing is short, you might need longer tubing if your cold-water source is not close.
My only complaint:
The included 1000w hot plate does not get hot enough for many kinds of plants. I use a 1500w for most of my oils. I repurposed the 1000w plate to be used with a soxhlet extractor which only requires about 1000w.
Tom B 
TJ 
mark 
