I have been very happy to stay at Vincenzo's place and I reccomend.
He is a very caring host and was flexible in welcoming us on our arrival time.
The flat is a as per pictures and description. Tidy and fully equipped. It is located ideally in the "new town" and it is just walking distance to all major touristic attractions. The place is quiet and secure and is also allowing car parking in the streets around (but you will need to avoid rush hours, otherwise it will become problematic to park close by).
If anything, the flat is just a bit dark inside due to the construction configuration (old building), so if you are spending time outside, no problem, but if you are planning to spend a lot of time in the flat and that is an issue, you might want to ponder your options.
Finally, just in case you are unsecure whether Taranto is a nice place to stay/visit… Do it! Despite the bad press due to the neighbouring and problematic industrial sites, the town itself is charming and offers quite some interesting spots (do not miss the archaeology museum) and it is the without doubt best option as a base to visit all the other places around in Puglia.