Is Yossi Abu's company good?

I am thinking about investing in a company, So guys tell me Is Yossi abu's company is good to invest or not?

As Much as I know about Yossi Abu he is quite good in business. His company Delek drilling is also good and one of the leading company of Israel, so you can put your money in his company if you want. But check all the things before investing in any company.