On the whole, the solution is stable. I rate ESRI ArcGIS' stability a seven out of ten. I rate it a seven because they've moved to cloud-based technology, and if we've got a slow network, ArcPro could take forever to load up. That is a real pain. I had a meeting this morning, and we waited half an hour for ArcPro to open. But ArcMap, in the old days, would open in about five seconds.

The solution is stable, but it can be really slow. If you do some extreme analysis, I'm working on between 30 million and 1.7 billion rows of data for the whole UK, and ArcGIS doesn't like it very much. I'm using an alternative because ArcPro would take hours and hours to do it.

I have seen very, very few instances of instability. For all of the years that we have been using the product, we get updates and patches to fix the problems and bugs that are discovered. I would say that there were some cases with bugs in the past which caused instability, but not in the present. Now the product is quite stable.