Using ETS we've been able to solve a few ongoing issues with capacity from our suppliers. When load testing with ETS we discovered that we were not being provided with the capacity that had been sold to us. Once we we showed the results to our suppliers this was quickly rectified and we then tested again using ETS and were happy with the results. Also we are now monitoring our inbound revenue generating numbers to ensure that they are available and if there are any problems ETS alerts us before our customers have issues and it affects our revenue.
It's really easy to use, it's not just for highly technical staff. Their approach to pricing allows us to use our own people for testing rather than pay for consultancy we don't require and we can test as much as we like without getting hit with additional costs.
Currently there isn't any web chat testing features, although we have been told this is in development and will be released into the product soon and will be included in the current pricing.