There are a couple of concerns you might want to be aware of. One is that Apowersoft Background Eraser seems to include an Apache web server – many people do not want to have a web server running on the PC or laptop because of security concerns, and even if you don’t mind, you’re trusting that Apowersoft both implemented Apache code & configured that server in a secure fashion. The 2nd concern is that Apowersoft Background Eraser uses Image Magick, which has unfortunately become infamous for its many security vulnerabilities -- cvedetails[.]com/vulnerability-list/vendor_id-1749/Imagemagick.html .
Otherwise installation isn’t so bad, with the program’s folder holding ~64 MB – the GOTD included setup file is a downloader – and folders added to ProgramData and Users\ [UserName]\ AppData\ Roaming\. Only a couple of keys are added to the registry, one for the app & one for uninstall.
Apowersoft says that Background Eraser uses AI to select objects in a photo – you might ask: “how well does that sort of thing work?” Well, Adobe lets you use AI to select objects in Photoshop, along with tools to fix that automatic selection – it’s more of a quick starting point sort of thing. And Adobe is a huge company [$9+ billion in 2018], with I’d imagine Far more resources to invest in AI than Apowersoft.
That said, mileage will vary, because some photos will have simple backgrounds that make it easier to detect edges [where the object ends & the background begins], because the sharpness of photos can vary considerably [you can zoom in on a photo with lots of noise and not be able to see a well-defined edge, anywhere], and because objects like a coffee cup have hard edges where something like a head shot will not. If you don’t need highest quality, it may be good enough. If you want/need that quality however, you’ll have to use an image editor [e.g. P/Shop, PSP etc.], where you can remove a sort of background colored halo [fringe], and do stuff like reduce a selection by one or a few pixels & add feathering.