I've heard of him but not much else.. personally I'd stay clear of any stock newsletter.. there is bound to be biased information in them if he's investing in the stocks he's mentioning.. if he isn't then they aren't that great of picks.
Pay special attention to any form of a disclaimer stating something to the effect of "We were compensated XXXX shares by XXXX company".. by stock newsletters --> this should always be a red flag.
On a sidenote -- if you were thinking about purchasing a subscription from Leeds.. I suggest purchasing Greencat's CD (lagreenteam.com) first.. besides giving great instructions on how to scan and make great stock picks yourself it teaches you well more than enough TA which would enable you to do the DD on Leeds' picks yourself.. and DD is
most important things to do when playing the market imo....never go by just someone's word alone.