I'll give it a 3 but I was going to give it instead a 2 because I'm the type of reader who likes his immersion and man the grammer is really bad and broken from what am I read so far in the first 7 chapters hopefully it improves. I'll come back and change it if need be once I catch up to newest chapter.
The translation quality is honestly quite poor. There are a lot of extra words, in-between and some words clearly missing here and there. It's also clearly translated for a Chinese person to read in English, not an English person to read in English. There are a lot of these store system novels, and this is not very good compared to most of them.