I used to sell machines and will recommend Janome over all others. It's been a sore point for years tho that Janome doesn't set up relevant feet to give an accurate 1/4", like a few of the European names do. Ok so sewing isn't all just about quilting, but they're not going to make feet 5/8" for dressmakers so why not for quilters?
A length of tape along your machine bed will give you your 1/4" guide, just frustrating!
The 1/4" foot that came with my 7700 was useless, infact they were recalled. It's silly that I had to buy their other 1/4" foot to get accuracy. At the end of the day, the tape on the bed really is the best, most visible option. And your straight stitch foot should give you beautiful stitch quality.