1. It is a free software
2. Performance is at a very good level
3. If there is a problem it can be fixed easily because it has a good community website.
Room for Improvement:
If the user faces a problem he has to read a large amount of docs to fix them.
Oracle VM Virtual box is a very good tool for me. The main reason is that it is a free product. Also, if I face a problem, I can fix it because the community website provides very good support. You do not need to have a high level of skills to work with it. As a student and a programmer, I have to use it with different operating systems. I have to check my codes in several operating systems. For that, Oracle VM is a very useful tool. On my laptop, I am running Ubuntu on OracleVM.