Jesus....This is one hard list to play right, to win frankly you've got to make every decision right on. It's not very forgiving. This is more a veteran's list as you need to know the rules inside out and wring every advantage you can out of it to stand a chance.
You can do well, but only if you get behind enemy Armour, if you meet head on you will get massacred. Equally
AT Guns will hurt you, especially the lighter types like 6 pounders.
Advantages, you are fast and mobile, and lots of options to remove gone to ground so always FLANK, FLANK FLANK. If you aren't constant moving you are doing it wrong.
Remember to remove gone to ground on enemy units to make your fire more effective.
Sorry to sound like negative nancy, but you will really need to play and stick with them as it will be depressing the 1st few outings because this is a difficult list to use effectively.
I play Lehr aswell!