Question: what is a good download speed kbps?
Answer: 150 kbps is TERRIBLY BAD (for download speed). In 2019 - You should be running at least 1 Mbps, and most home users in the developed world should be running download speeds between 5 Mbps and 100Mbps (some higher). In remote areas and in the developing world speeds are much lower, or even non-existent.