We have found their speed and cost are good.  They are at their best when a customer focuses on the functionality and leaves Zeton to do the engineering.  We had the plant 6 months after sanction and commissioning and produced polymer in about 2 months.  We have found their estimates are good and they keep to the contract price ( + the extras we typically have to request for bits we discover we need – 10% ish).  Avoided if the scope is well defined before sanction).  Keeping to the week they promised for delivery is a definite plus.  

They did a full define stage package for us for less than $16,000.  That was perfect for an accurate sanction of a $ 1 million dollar project!