Definitely some rough edges, and like most CAD systems it has a pretty steep initial learning curve, but I've been surprised at how useful it is. Finding a recent youtube tutorial or two can help with getting started (sadly the wiki/docs are a bit sparse).

I feel like it's not as far along as say KiCad or Blender as far as "competitive with commercial offerings" open source tooling goes, but development is very active and it seems to be improving at an impressive rate.