1xbet is no longer a completely fiat casino alone, as they now accept deposit of bitcoin, Ethereum and some other major altcoin cryptocurrencies, yeah, I don't know much about the global version but for the local one we have here, I have one time deposited usdt on the site to test play, and everything worked fine, so for me, I no longer see or consider them as a fiat only casino, they now operate with crypto as well.
Last time I checked they are a fiat and crypto Casino and Sportsbook !
Btw very few users can access the global version as 1xbet has localised it's platform for all users to match countries currency and display games associated with country/IP address .
And yeah, when it comes to review and rating, trustpilot is not the platform to trust since they are heavily centralized, if 1xbet wants, they can pay them and they will remove all or half, or even more than half of all the bad ratings and review about them, trustpilot have done this for several companies in the past, and they may, and can still do it for any company if they get a good and juicy offer on the table.
The fact that reviews can easily be bought on whatever platform we can consider out there, I think the best to do is read the bad reviews to see what kind of a problem a player ran into.
Btw, that's a new one for me never heard of the service of buying off the bad reviews from trust pilot themselves... thought the strategy used by most is over shadowing the bad reviews with more positive reviews
And besides again, some players tend to leave negative rating and review for casinos as a way to get back at the casino after they have lost their money in gambling and they feel really angry about it, such rating or review is biased, and can't be trusted or as genuine, and we have alot of such rating and reviews from gamblers on trustpilot, so I personally will never depend of trustpilot when looking for a good casino to play on.
This is one ugly side about reviews as not all give a true reflection of a players experience as this usually turns out to be the only place gamblers feel can hit back at a Casino/sportsbook after ones pockets and ego are bruised from a losing run. Which is why personally I use several platforms via googling to get the true picture of what people think about a service provided by these casino's to sieve out biased opinions.