Happy Dog is my jam. We go most times that we are in Cleveland and we enjoy it every time.
Pros:
*Straightforward pricing. You don't end up with a $10 hot dog because you add lots of stuff that you can't keep track of that's all different prices. It's a flat price for a hot dog and you can get allllll kinds of toppings.
*Easy menu to navigate. It's a checklist and you just check off what you want.
*Delicious hot dogs. Their toppings are also well-seasoned and taste good.
*You can get lots of toppings on your tater tots or fries and the pricing there is also straightforward.
*Full bar, baby! And a cool bar, to boot. Most of the room is a long, oval bar. It's got a naturally-retro vibe (that sort of ageless, classic bar thing where you know it probably hasn't changed much since your parents sat at a similar bar) and I even heart the sign out front.
The only things that could use any improvement are some of the menu descriptions. I don't know what "alien" relish is and I don't really want to ask what every single thing is that has a creative name. Having a menu-menu with descriptions scattered around the bar in addition to the checklists would be awesome. That's not most of the items, though--most things are things you can recognize and are delicious. I especially like getting the chorizo chili on anything. (Chili cheese tots yeaaaaaaah!)
Everyone is also really friendly when we go. We've never had bad service and it's lovely.