i’ve owned both and loved both with zero complaints. in the end i kept my Merkel given handling feel, short barrel and gun weight for caliber. also regulates now at 1.5 inches and i love itDon't get me wrong. They are both good entry level doubles.
However as someone who handled both and owner of a Merkel I think Merkel has the edge for having a sturdier mechanism and I believe in German engineering.