Have owned a Juki TL2200 QVP mini for 5 years and it's a great solid, straight-stitch machine that works well for all types of quilting - I think it does a great job FMQ and walking-foot quilting. It also works great on faux leather, denim, multiple thick layers when making bags with webbing handles, etc.. I can't emphasize how solid the Juki TL is and I expect it to be running longer than I will be! I do not find mine to be particularly tempermental at all but I'm a pretty consistent user of the same threads, needles, etc.. I agree with a previous poster that it has a nice wide open throat space for such a reasonable price.
I also had experience with a more expensive Janome and thought it was no comparison to the Juki for quilting or any amount of thickness - just didn't have the ooomph needed.
Good luck finding what works well for you!