I'm a big fan of bun bo hue but the one I had here yesterday night was so spicy that I wasn't able to eat any of it without rinsing it in my boyfriends beef stew and I have a really high tolerance for spicy food already! The bowl was also unpleasantly oily.
Their tomato beef stew on the other hand was very flavourful and rich but also a bit too oily to our liking.
Overall, try the beef stew, avoid the bun bo hue unless you can take very very very very spicy food.