Every now and then I will use one to test my sites in other areas or if a performance issue is reported, but that is pretty rare. The choice to trust my data with my ISP vs the VPN company isn't a great debate as most VPNs end up folding and showing how they just store the same data anyway when push comes to shove. Some have decent records, but they are few and normally get bought by someone who is much less reputable anyway.