Decorating our living room for the first time (1930s home), and need to decide whether to line the walls or go straight to paint (over mist/base coats of course!). We want as smooth a look as possible without plastering and originality decided to line. Did a huge of work sanding and filling the walls and the decorator said they’re good enough to go straight to paint if we want, which has thrown us! Any advice and pros and cons would be really appreciated 🙏