A repair that affects safety, structure or a major system, such as electrical, furnace or roof, tends to pay for itself, and the Saskatchewan REALTORS Association's comparable-sale data backs that up, because it removes a reason for a buyer's lender to hesitate. A cosmetic issue like dated paint or worn flooring rarely returns what it costs to fix, since buyers factor a discount for cosmetics into their own offer anyway.
As-is does not mean undisclosed. Saskatchewan sellers still have to disclose known material defects, so listing as-is is a pricing decision, not a way to avoid telling a buyer what is wrong with the house.
The comparable sales in your Saskatoon neighbourhood, not a generic renovation checklist, tell you which repairs a buyer will actually pay for. Get your hand-reviewed valuation from Joel Dyck.