Let me tell you guys that I was over the moon when Subway finally made its way to Tawau sometime late last year. They're located within the 1Arena Commercial Centre at Jalan Chong Thien Vun but I have been regularly using GrabFood services whenever I felt like having their sandwiches (which no joke, probably at least once a week) since they're quite far from where I'm staying. Nevertheless I did tried out a bunch of their sandwiches (mostly their 6 inches) and my faves thus far are their Curry Chicken, Veggie Delite, BBQ Chicken Strips and Bulgogi Chicken. Taste wise everything was definitely tasty but portioning of its ingredients differ from time to time (sometimes the insides were just overflowing while other times you could probably count them with one hand). Their cookies were also soft and chewable (especially their Double Chocolate and Oatmeal Raisin variety) but a tad too sweet for my liking.
** Current status - Still in operation (as of Oct 2022)