The Residential network contains real users IPs, with real ISP signature. When using the residential type of IPs, it is harder for target sites to deliver misleading information and require less efforts on your side to get the real data you need. In addition, the residential network gives you access to a vast network, which helps you to scale up according to your needs. To summarize, you should use the residential network if the signature of the IP is important for your different activities, and/or if you are getting blocked by your target site.