I have had a 1.0 SEL DSG Kamiq new from June, 2020, and am very pleased with it, Your driving style sounds pretty similar to mine and using E10 (the recommended rating and also better for the environment than E5, and cheaper) I find a trip of any length usually turns in economy around 53mpg. Recent examples are:
224 miles, 53,2mpg
180 miles, 55.3mpg
73 miles, 51.3 mpg
In fact, figures are very consistent. For example, I regularly do a trip of 55 miles and economy is nearly always 53.3mpg and I can expect the same figure on another regular trip of 181 miles.
On shorter runs, economy is also good:
3 miles, 35,3mpg
2 miles, 39.2 mpg
3 miles, 32.4mpg
10 miles, 46.3mpg
Those figures are from cold.
DSG is smooth and car is quiet. In the D (detached) option where the car travels with the engine detached from the gearbox, it is pretty much silent.