I've been hacking away through the low rank quests with the Charge Blade on a second file, and so far it's been fun. The weapon has a nice flow to its morphs, straightforward gauge management, handy side-hops and satisfying burst attacks. My runs against early game stuff on my second file go faster than I was expecting, but test hunts on my main file are still far slower than my bowgun times. So enjoyable as it is, I'll definitely need a lot more practice before bringing Charge Blades to a real fight.
Some tips from a CB user: -
Remember to use X+A for shield thrust in your SNS mode. It's fast and does decent damage for its speed. Shield thrust on the head counts for a KO. You can transition into directly Super burst by pressing X+A again.
After a sidestep, X will do a spin slash that covers some distance. You can use this to move closer / reposition yourself.
Try not to do Ultra Burst. It's not worth it most of the time. It's best to keep your shield charged. Make sure you master the Ultra cancel into Super Burst.
The X upward and downward axe swing is great for hitting in-air mobs. With enough damage threshold, you can pull them out of the air.
If a mob is downed/disabled and you're in the right position, you can press A,A for the 2 round axe swings, X for the upsward swing, then A, A, A for the round swings into super burst. I find this is one of the most efficient damage dealer to the downed mob, especially if you have access to the head.
You can Guard Point most roars and counterattack directly into Super Burst with X+A.
**Super = AED.