Not a bad project, a jump in density from 4 houses (5-10 units due to several being cheap rental) to 56 units within a block of the LRT is a no-brainer given the location and amenities of the area. The only argument a NIMBY in Sunnyside would have here is the destruction of those cheaper rental units and replacement with higher market units. Most NIMBY groups in Calgary have yet to play this angle of equity and what adding new, more expensive housing to an area does for access/income diversity (largely because NIMBYs often don't want "poor" or renters either). However, Calgary is a long way from having gentrification and low-income displacement as part of the social/planning dialogue as it is in other cities so even that angle is unlikely to get any traction.
In the long run, more units of this type will be good for the area and it's affordability. An additional 50 - 100 residents will be great for vibrancy. But I am disappointed the developer is not asking/receiving a parking reduction given the location. Each stall adds a premium to construction costs (and rents/mortgages) that exists forever. For an area with as good of access as Sunnyside, a parking maximum should be applied.