If you can, read up on the technique as it's quite different to shaving with the fusion and you need to work it in a different way to get the best from it. There were some pretty decent videos linked on this page above.
At first, my shaving technique wasn't great with the Merkur, but it's improved a lot in a year and good blades also make a big difference. Best to shave out the shower etc. as usual though. I'm confident you'll come to love it. I used to get shaving burn with all razors - had electric and all the different wet types apart from a DE. Now I don't get any irritation unless I'm careless.
At first, my shaving technique wasn't great with the Merkur, but it's improved a lot in a year and good blades also make a big difference. Best to shave out the shower etc. as usual though. I'm confident you'll come to love it. I used to get shaving burn with all razors - had electric and all the different wet types apart from a DE. Now I don't get any irritation unless I'm careless.