Will this lift arm jack work as well as a Viking? For Doors, windows, gates, machinery, furniture 

This is not that arm from Viking. Those are really high-end - and the price reflects that.
However, these jacks from Anoredo (TTLL01) are not the cheapo sheet metal and/or plastic either, rather, manufactured with solid steel and light-alloy, machined well, and work well at a 200kg lifting capacity - at a fraction of the cost.
Just thought of doing this review as a happy customer. A must have versatile tool in any home and/or workplace.
There are similar ones from Daytona and several other manufacturers. Pick the one that suits your application and budget.
Just as a reference I've included a clip of my high-lift jack as that's the design root!

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