Likelihood to Recommend:Not LikelyExtremely Likely
Pros: It allows you to upload SVG files on their online editor (or you can also download images from the same website), and then you can modify everything. It let's you work on both background and existing elements in the image. changing their size, color, position, etc. but alos let's you add new shapes, either made with the pen tool, predetermined functions (which include clipart-like) images, or downloading another picture to paste within. It then allows you to download the result as and SVG file. Fairly straightforward and easy to use.
Cons: It is extremely simple, so it is not that useful if you need to add more complex elements to your SVG file. It also has to work with previously created files, as far as I saw, you can't make an empty file within the editor to start from scratch. You also have to create an account if you want to save your progress, which might be inconvenient if you only plan on using the page once. Otherwise, it doesn't have many drawbacks.
Overall: It is great to use when you don't have your computer and usual programs at hand, since it provides enough functionality that it allows you to edit vector images easily and fast.