You can really collect all the documents on your own and apply for a visa, as I did in my time. But after going through this path, I can confidently say that if at the time of collecting and filing documents there was a person who has already received a Global Talent visa and could share his experience, I would save a lot of time and nerves.
My service package includes both consultation and verification of documents collected by you and my full support at all stages. So if you value your time and nerves, trust me.