Buying $300 serger - between JUKI MO654DE or Janome 8002D - thoughts?

They both seem highly rated. I'm an experienced sewer on a budget. I'll mostly be sewing knit clothing. I've read the only cons are that the JUKI is somewhat hard to thread and veers off slightly left when finishing a seam and the Janome is somewhat hard to adjust tension for. I'd love some advice ☺️