My current machine is out of service until 3rd, as on that day I'll be going to a city where authorized service is located as I want to avoid sending it (and it's cheaper, too). It isn't anything serious, I believe it just needs oiling which must be done unfortunately in a service. It would be fine... if my old machine didn't have issues too. I'm not sure if it's early sings of engine failure or it's bit noisy because it was unused for a good while. I'll have it checked next week, but now I'm already thinking about getting one or two spare of same model - I sew a lot and I sew fast but not enough for industrial machine, which would be 3 times more than two of these machines, either already serviced or cheaper one to be serviced. Still, prices got inflated incredibly since I got mine. Maybe in the end I'll just get used straight stitch I guess...
*Even worse, I need to get scissor sharpener. Prices of my preferred brand scissors risen by 50% since I last checked...