I get Green Flag via Direct Line. Only ever used them once earlier this year…well sort of. I got a flat tyre on the autoroute in France so Green Flag couldn’t recover me as French law dictates you have to use the French recovery service on Autoroutes, but they compensated me for the 235 euro charge on the basis they were prevented in delivering their service. Also they were on standby if I needed any assistance at the town the French recovery service took me to, but we just put the spare wheel on and completed our journey. So on the basis of that sample size of one experience they did the business.
Not sure how much it costs me as its wrapped up on my insurance cost…its their full fat recovery including Europe putting me up in hotels if needed and paying for rental cars if needed as well as other things, and I pay about £450 a year for insurance and the recovery service. I think the equivalent AA service is over £200 a year.