My family and I visited 520 BBQ House twice; once for snack, another time for all you can eat ($19.99 regular, $16.99 on Tuesday).
Skewers ranges from $2.99 - $6.99. Most items have the same flavour; salt, chili pepper, and cumin. Every item started tasting the same after the first two or three skewers. It masks the natural flavours of the ingredients.
Similar to other reviewers, my favorite is the Enokitake mushroom skewer and Korean Cabbage. My family did not enjoy any of the meat skewers. They felt lamb skewers lacked the gamey flavour of lamb, beef skewers lacked the earthy flavour of beef. Lastly, chicken gizzard and squid tentacles skewers were very tough. As well, my father felt they used a natural gas grill instead of a traditional charcoal grill.
Overall, 520 BBQ ranges from a 2 to 2.5 stars (rounded to 3 stars for this review), depending on the day.