There are several PWA frameworks out there: PWA Studio, Vue Storefront, Deity, ScandiPWA, FrontCommerce, ... It's been a while and some projects have already been developed on them. Using PWA is new for must of us, and developing on it is different than on a classical PWA frontend.
What is your experience? Is it more or less complex? Do you need more or less time now? What about the developer experience? Are you content with the results?