I've used Auslogics in the past and it's a very good piece of software, it defrags really fast and keeps your files in good shape. The built-in defrag software in Windows is sufficient but I prefer more options so I go for 3rd party software.
Although, I installed Defraggler last December and never looked back again. It might not be as fast as Auslogics but it keeps my file system in a very solid state. I usually run Auslogics weekly (The Defrag and Optimize option) since my files always gets fragmented (I do use my system a lot, downloading and moving in/out a lot of files) but with Defraggler, I only do a full defrag once a month and I'm good to go. I do run a Quick Defrag every now and then if I see it necessary. Defraggler also has a Boot Defrag option which makes it a tad better than Auslogics.