We called Danny who ignored us until we mentioned a negative review. And not only the surface layer has peeled off again, but the actual concrete is crumbling (see the pictures).
This covered up the damage but he warned us that it wasn't a permanent solution. After lots of fighting and back and forth and threats to put up the negative review about his job, he did a surface level fix. So essentially we would have to pay for the job all over again. He said he would come and fix it for $4800. We never threw salt and in this area, city doesn't clean sidewalk so noone else threw it either. We called Danny and he claimed that it was our fault and that we threw salt on the walkway which led to peeling. The following spring, less than 6 months after the job was completed, we noticed the cement on several sections started to peel. After that Danny finished the section and we thought we could put the whole thing behind us. That's a big job in itself and I ended up having to pay my GC to do it. After long arguments and because there was holdback on the job, he agreed to fix it only if we remove the cracked section and dispose it. We called Danny and he didn't want to come back and fix it. The next day after the walkway was finished, one of the sections cracked.
In summary, in less than 2 years, our concrete walkway looks like the pictures below. We hired Danny to do our concrete walkway as we were looking for limestone finish.