It was slower than git, used more disk space and hence downloading from remote took longer, didn't allow in-place branching (you had to change directory), no hi

It was slower than git, used more disk space and hence downloading from remote took longer, didn't allow in-place branching (you had to change directory), no history re-writing and didn't have the staging area in the same way. They tackled some of these issues but by then they had a reputation and a lot of projects had switched to git - Linux gave it a lot of momentum.