THIS AN EXCELLENT CONTIRBUTION!
Let give yo my personal thought due to I previously been working with FTP Servers so I know a thing or two. An awesome hunt for those who are beggining to understand how the data transfer works. Let me give you my personal thoughts about FileZilla :

Pros:

• Free to download and start using at the momment you download it.
• It's multiplatform so you can use it on Linux, Mac, and Windows.
• I'ts open-source.
• I was a totally unexpiernced with this whole thing with servers and file transfers servers, so this was easy to use and include on Xampp and start building WordPress projects.
• It's a reliable alternative compare to others FTP Clients.

Cons:

• You need to configure first the secure transfer method to guaranteed the save of your data.