Yes I have, both.
At the risk of offending others, they are ok, but certainly not the best.
We did stock them at the Centre, but I replaced them.
I prefer Absolute Aromas myself, but there are other good ones and others will tell you their preference.
The thing to do is to compare them. Smell the cap of one of Amphora's and then compare it with one of Absolute Aromas oils. No comparison.