I initially bought this saw because it's advertised as being able to cut dowels or plugs flush with a surrounding surface. I tried this a few times, and was fairly disappointed - it cut easily enough, but scratched the surrounding surface badly! After more research, I learned that a true flush-cut saw does not have any "set" on the teeth (i.e. the teeth aren't bent out from the saw plate. Some set is important to prevent the saw plate from binding in deeper cuts, but it means that the teeth will scratch the surrounding surface if it's used as a flush cut saw).
I eventually bought a true flush cut saw from a popular Canadian woodworking/gardening retailer, and was amazed at how much difference that made. The teeth are truly flush with the saw plate, which means they won't scratch your workpiece when you flush cut a dowel or plug.
Not so on this Shark saw - the teeth do have set and will scratch your workpiece if used for flush cutting. Some significant time spent with a sharpening stone could theoretically remove this set, but the impulse-hardened teeth would make this more difficult, and it would be hard (for me at least) to justify that time and trouble when ready-to-use flush cut saws are available for only a few dollars more.
Second, this saw is advertised as "Ideal for dovetails..." While it may be strictly FUNCTIONAL for dovetails, it's far from ideal. The vast majority of saw cuts made when creating a dovetail are effectively rip cuts, which means you're cutting along or parallel to the grain of the wood. This type of cut is fastest and most efficient when done using a saw with rip style teeth. This Shark saw has teeth shaped for CROSSCUTS (perpendicular to the wood grain), so it's optimized for slicing through wood fibers in this orientation. It will still make rip cuts, but these cuts will be slower and potentially harder to control than they would be with a rip-specific saw. In other words, you could use this saw for an occasional dovetail, but again, it's definitely not "ideal".
The third descriptor in Amazon's title is "detail" saw. Finally an accurate description of an appropriate use for this saw! It does a fine job with small crosscuts and general trimming tasks, and leaves a fairly smooth surface. Nicer saws are available for these general small crosscutting tasks, but this is about as good as it gets for the price.
In summary: If this had been called a "Detail/fine crosscut saw", I would have given it a much higher rating. However, it's NOT a flush cutting or dovetail saw, and shouldn't be advertised as such. If you're looking for good saws for these specific tasks, look elsewhere.