What this tool actually does well
Oscillating multi-tools have a reputation for being a bit gimmicky, the kind of thing you buy once and forget in a drawer. The DCS355N is not that. Brushless motor, 18V XR platform, variable speed dial that actually responds the way you'd want it to. I used one last winter stripping old caulk around a bath refit, and the control it gives you in tight spots is genuinely impressive. No cord faffing, no carbon brushes wearing down mid-job.
The oscillation angle is narrow enough to be precise but wide enough to cut at a decent pace. It's not the fastest tool on a worksite, but that's not really the point, is it.
Who it's for, and who it isn't
If you're already running DeWalt 18V XR batteries, this is an easy decision. The bare-tool price makes sense because you're not paying for a battery you don't need. Solid for tradespeople doing trim work, DIYers tackling a renovation, anyone who needs to make flush cuts in awkward places.
If you're starting from scratch with no DeWalt batteries, the maths changes a bit. You'll need to factor in the cost of at least one battery and charger, which bumps the overall spend up considerably.
The honest reservation
The accessory system is proprietary, which is a bit annoying. You can get adapters, but native DeWalt blades aren't cheap. Worth stocking up on a mixed pack early on rather than buying blades one at a time.
Overall though, for anyone already in the DeWalt ecosystem, this is a proper solid pick.
