What factors should I consider when choosing a residential proxy provider?

[Rolaproxy rola]

I'm researching residential proxies for market research and web scraping.

I found many providers claiming they have millions of IPs, but I'm not sure which factors actually matter.

Besides IP pool size, what should I pay attention to?
- IP quality?
- Success rate?
- Location coverage?
- Support?

Would like to hear your experience.

 

[KERRYW]

But later I realized data access was actually a bigger challenge.Things like: collecting fresh web information, accessing different regions, maintaining stable requests all require reliable infrastructure.I recently tested Helodata as part of my workflow.Still learning and improving my setup.Here is the link I’m using—feel free to give it a try if you're interested, and we can discuss it together: https://helodata.com?ref=7s9k2g
Curious how other developers handle global data access for AI applications?