It is a good price but I would not trust.
First, they lie about the retail price of Office 2019 which is actually $149.99 directly from Microsoft. Yes, they are also claiming to have the package also include Office 365 but you can't outright buy Office 365 as it is subscription based.
https://products.office.com/en-us/compare-all-microsoft-office-products?&activetab=tab%3aprimaryr1If the license is actually legit I would guess that what you are getting is, at best, Office 2019 and a one year subscription of Office 365. Directly through Microsoft that combination would cost $249.98.
Second, the site lies about the end of the sale time limit. If you go to your link there is a time limit count down starting at 8 minutes, 45 seconds. Let the timer count down go for a while then leave the page and go back. The count down timer is back to 8 minutes, 45 seconds. This is a bogus sale tactic that makes you think that you have to act quick which makes a lot of people act before really thinking. I commend you for not immediately falling for this bogus tactic.
Also, the domain of
https://disway.shop was only created 28 days ago so has not had enough time to be black listed if it is a bogus site. What concerns me here is the short time of existence. Sure, it is quite possible that a legit site just went up 28 days ago but, considering the count down timer scam and the price fraud, I would have to avoid this site.