Beef tagine with Fava Beans

When I saw this beautiful black Tagine in the store here in the USA,

I said to myself "I will buy this Tajine whatever it costs", I admit that it

was expensive ($65), if we compare this price with our Tagines of Morocco (1st picture), they cost not more than $10, sometimes 3$ .
Its construction is not the same as a normal Tagine that everybody knows, the bottom is a heavy frying pan, a kind of Tefal (which does not burn), in my opinion that's what makes this Tagine special.
Today, I prepared a beef tagine with fava beans, I did not find fresh ones, so I bought them frozen which I found in an Asian store.