Only thing throwing me off is the bolts, as an impact driver is better with those. Also, impact drivers are better with longer (3-5") screws, as they tend to break the driver bit before stripping the screw head. This is a double edged sword, as they can have a bit too much power to be convenient for short screws. Where an impact driver may fail to meet your requirements is that impacts do not have an adjustable chuck to facilitate different sized drill bits. Drills and impacts each have their strengths, and the unfortunate reality is that multiple tools is the best option. However, if you are limited to one tool I'd have to recommend a drill.

Milwaukee makes some of the best cordless tools, but they also make lower grade stuff. Top of the line is brushless, and those cost significantly more. If I could afford it, would switch to all Milwaukee brushless tools.

I hate having multiple brands of cordless tools with their respective incompatable batteries and chargers, but it happens when you're on a budget or in a pinch. In a budget, got a brushed 18v Bostitch impact + drill for maybe $120 several years back and it's performed well. More recently in a pinch and got a brushless 12v Skil set with drill, impact, oscillating cutter, and bluetooth speaker for like $200. It too has preformed well.