I'm a big fan of ceramic kamados. Are they the best cooker for every type of cooking? Well no.
IMHO:
For straight grilling - a Weber, PK Grill or Santa Maria style grill would be best. (With the Weber being the cheapest)
For Hot Smoke - an offset style smoker or a pellet grill would be best.
For Cold Smoke - a dedicated smoke house would be best.
For Pizza - A dedicated wood fired stone / brick oven would be best.
If I had the money and space for all these style cookers I would have one of each. Problem is I don't have the money or the space so I have a ceramic kamado that is good at at 3 of these types of cooking. (except cold smoking)
Cost of operation is a major consideration once you lay out the initial investment. The kamado is a penny pincher when it comes to fuel. I've loaded it up and cooked for 13.5 hours and could've easily gone another 3 to 4 hours on that single load. How many slits of wood or pounds of pellets would it take to cook for 13.5 hours on offset style smoker or a pellet grill? Also how many times would you need to refuel the offset style smoker or a pellet grill to cook that long?
I started out with a Vision (from Costco) and later upgraded to a Primo Oval XL. I'd buy my Primo again in a heartbeat but whatever kamado you buy you'll love it.
Here are the Pros of the Primo as I see it:
1. I really like the versatility of the oval shape.
2. With the different accessory rack you can set it up with 4 different temperature zones during the same cook.
3. With fire box divider in I can cook on just half of it. Makes it kind of like a smaller kamado. Plus I can get a round D.O. in on one side and not worry about it overlapping the fire zone.
4. Made in the USA. (If that's important to you)
Cons as I see it:
1. Cost. You'll find that they run anywhere from an extra $300 to 700 depending on which accessories you buy.
2. Dealer network isn't as extensive as the BGE.
Here's a few pics of mine in action that will show you the versatility of the oval shape. It's an Oven:
Including Pizza.
Cooking on half:
Cooking over the fire.
Now on non-fire side.
Cooking at full capacity.
Ribs.
Sears with the best of them.
Paella anyone?
I'm not sure why the some of the pics won't show up/ I tried resizing / re-pasting them 3 times but you get the idea.