SQL Server was pretty good until they went the Oracle way with their licensing shenanigans, but even with that they were a lot cheaper than Oracle. In fact SQL server was one of the few great products that came out of MS.
Can't say the same about Oracle.
MS SQL is today stil a very good product, using it now for more than 20 years in different applications.
And: The free version with max up to 50 GB (?) of DB size is a very good option for smaller environments/apps
Visual Studio is also great and widely adopted.
But what else do they have? I had some good experiences with Exchange years ago, but this is just my personal experience, since most people seem to hate it.
What else do they have that is considered a good/solid product that you would recommend to someone?