NuGet. The whole package management experience just feels so disjointed and tacked sometimes.

• VS package management is (search, upgrade) slow and buggy
• Central Package Management works for the CLI but is not implemented properly in VS, and is not available for Framework projects
• The Azure credential manager, for Azure based NuGet feeds, is hard to configure reliably
• Don’t even start me on issues querying / publishing NuGet packages via PowerShell