I generally don't take reviews on websites like Google and TrustPilot seriously in this industry. By and large, only two kinds of people leave reviews: bots/staff/paid accounts that leave five star reviews (and a few four star reviews so it looks more legit) and angry customers. Reviews don't give you a good sense for the average customer feels, because the average customer isn't going to write a review about a CSP.
Of course, there are exceptions.
They are a member of Alliott Global (
International Alliance of Accounting Firms & Law Firms in 90+ Countries), which is a generally reputable and reliable service provider with decades of experience.
Depends on the situation.
If it's a project that will require legal assistance such as reviewing/writing agreements, engaging with regulators/government, and so on, I'd pick a law firm most times.
If all you need is company formation and accounting/management, an accounting firm or ASP will likely suffice. Tend to be a bit cheaper.