I made these last week and loved their juicy texture. Despite the involved directions, I added a few timesavers and didn't find them any more difficult than regular meatballs (mixed in my Kitchen Aid). They freeze great. I put leftover frozen ones in crockpot with jarred gravy and cream of mushroom soup.
Note: I've never made the lingonberry sauce but mix a can of cream of Mushroom soup with a half can milk for a creamy sauce.