do not buy residential
first the free trial is very hard to get secondly most if no all of the residential proxies are datacenter proxies . functions just a normal free vpn would do . i once go a real residential proxy but that was just luck dont expect it to happen always . do not buy if you want to use it for surveys opening accounts or anything like that . maybe as a simple vpn i guess it works . but it also doesnt route the dns to the isp so exept no protection a good alterative i would say is proxy-cheap they start at 4.3 usd or something like that