Very Solid product for tokenisation and invocation.
We evaluated VGS, PCI Proxy & Hashi corp.
Pros:
-> Their Dev Eco system was good.
-> Had Libraries/SDKs for almost all languages (we had on our codebases)
-> Implementation is straightforward
-> No discrenable latency due to this.
Cons:
-> 1 Minor let down was support for legacy partners with SOAP interface.
Cost Observation:
-> WHile there is no question of value, I had to convince the Board / CFO for 2 quarters to get budget (It is a costly product - esp if you plan to get PCI-DSS through them)
-> Per tokenisation and ionvocation price will start to eat into your margins if your transactions are greater than say 50K a month
But it is a solid, secure and overall good product.