I rate the tool’s stability a nine out of ten.

No. It is a very stable and high capacity tool. At one point, I could have 10 query windows open and would be connected to three databases at the same time, and not have a sign of instability.

It's quite stable but takes a bit of a time to run SQL queries if the database is huge.

Sometimes, Toad Data Modeler crashes, so I'd say stability-wise, it's pretty good but not excellent.

I rarely encountered any stability issues; it is very stable.

Yes, I have still been facing some issues. Currently, with Windows 10, it sometimes would get stuck and stop responding. I am guessing it is something about the RAM usage. When this happens, I have to open task manager/stop process and it is frustrating because you might lose some uncompiled DB objects code.

Generally no, although I have had a couple minor issues with large scripts and memory errors.

The software is very stable.

No issues encountered.

The program did not crash or have other intermittent problems or issues. It worked as expected.

Sometimes, Toad crashes without a clue as to why, and it needs an immediate restart.

No issues encountered.

There were issues due to the databases connectivity.

Lots.