Normandy '44 any good?

[Strela]

The big issue is the dreadful quality of German troops, bar the panzer divisions. This past turn I had two infantry companies dug in a trench in bocage - a unit from 101st Airborne waltzed over and disrupted both with 2 attacks, losing only 1 man itself. Even when my units get to fire at a unit it T mode they do almost no damage.

Yeah, the Paras are a bitch to deal with. The only formations that can really stand up to them are your own Fallschirmjägers.
Good news is that they're leg-infantry, so they can't relocate very quickly, plus they get withdrawn at the end of June. After Cherbourg has fallen, they usually don't have much of an impact.

I hear what you are saying about the area from Caen to Carentan. At the moment I have the 21st Panzer and the 12th SS in that area, however they will get ground up by the Allies, so I will try and conduct an orderly withdrawal.

First 4-5 days are rough on the Germans. They're out of position, and have nowhere near enough troops to cover the front. Once Lehr gets in position, you'll have something that can charitably be called a front-line, but even then you'll still be hurting.
Don't forget that all those small-calibre AA units you have are capable of digging-in on their own.
They're pretty good at starting a second line of entrenchments once the primary line gets engaged.
Any fresh Inf divisions won't last more than a week (at most). Just enough time to give your Panzers a breather before they go back on the line.

All in all, the German player needs a somewhat fatalistic world-view.
You can't win, there are simply too many Allied troops around.
Nor will you be able to launch a daring Panzer-attack, driving deep into enemy territory.
So the focus-point becomes a matter of attrition, just settling for extracting as high a price for any gains the Allies do get as you can.

That all sounds pretty damn historical to me...!

David