"Some stuff is much better and some stuff is much worse, as people have said in other comments."

Agreed. And GDS are also very public about what does work and what doesn't work via their service assessments and self certifications https://gdsdata.blog.gov.uk/all-service-assessments-and-self...

See, for example, the rather damning report on the VATMOSS service https://gdsdata.blog.gov.uk/vat-mini-one-stop-shop-service-a...

This is leagues ahead of the previous approaches to developing governmental services. Like you I'd happily take gov.uk over DWP or the NHS PfIT. Even their failures are handled more productively.