It's the same kit sold under the Roswheel label. The patch kit is probably okay. The multi-tool usefulness depends on the strength of the handle connection -- the Park multi-tool is strong enough to handle a quill stem or almost anything other than the bottom bracket.

The pump looks pretty generic and semi-useful in a pinch. I'd rather have a pump with at least a short extension hose and threaded head. It's hard to hold a portable pump steady without straining the valve stem, so an extension hose and threaded head are easier than direction connecting pumps.

For a little more money you could buy better stuff separately. Something like a Topeak Race Rocket HP, Park multi-tool, and Park or pretty much any brand patch kit and levers (levers may not even be needed with some tire/rim combos). Nashbar sells decent stuff under their own brand name, has a good return/exchange policy and honest customer reviews on many items. The vendor you linked to looks like just another generic online seller of low priced stuff with little or no history or customer feedback.