They’re very nearly as powerful as those in Drafts (last I checked, they don’t handle multi-line syntax, which Drafts can). One of the more powerful features of NotePlan, IMO, is the custom syntax extensions and theming. That said, it’s a workaround, and may not work for you. But because these are just text files, you can open them in Obsidian, MultiMarkdown Composer or other markdown apps and use tables (or Mermaid diagrams or …) to your hearts content. NotePlan indeed doesn’t handle tables, afaik. I’ve used NotePlan for years and love it – with a few caveats. They have a very active, and helpful, Discord server where the developer is quite active and responsive. I still occasionally put tasks in OmniFocus if I really need alerts and reminders and such, but I’m almost entirely in NotePlan these days. I really like the “planning environment” approach that the app takes. This allows you to set up, for example, a new note with prompts for sections or even more dynamic content, like calendar events scheduled for the day. The most recent update incorporated templates more tightly into the app, adopting a lot of the same approach as a popular plugin. I find it easy enough to do most of my capture in the Daily note, then clean up and move some chunks to a project note as needed.
I also have several folders and projects for larger or ongoing areas. I also take meeting notes and general goals and ideas in the Daily note, and I find this free-form journaling to help with project planning and task identification. You can click on future dates in the calendar, add tasks to that date, etc. Most of my time in the app is spent in my Daily note, which just “exists” and doesn’t require any action to create. Clicking on a task from this view will take you to the note with the task.
It’s basically a filter view that searches your whole database for tasks, then presents them in a list with a bit of context. What allows them to live together so well is the Review view, which aggregates all incomplete tasks. I have been using NotePlan on and off for about a year and I find it to be an excellent combination of task manager and note taking app.