This place is closing at the end of April, and I will miss it (and the rest of the block, really) when it's gone.
This is a prairie small-town Chinese & Canadian restaurant in the middle of Calgary. The diner food is OK; I like the hot beef sandwich with gravy and fries. Where Lido really shines is its westernized Chinese food. The fried rice has the deep flavour of an old, seasoned wok. Don't go here for authentic Sichuan - go here for nice salty chicken chop suey and egg fried rice for $8.95. You won't be disappointed.
The only bad thing I can say about Lido, other than the fact that it's closing, is that the bathrooms are pretty terrible. Also it attracts some colourful characters, which can be a good or bad thing depending on your perspective.