An Arm and a Windows

If you're interested in the Surface RT but still aren't sure, there's no better place to go than Tom's Hardware for a detailed and useful review of the device. In fact, after having used the Surface myself I'd say with little hesitation that the review on TH is the next best thing to owning a Surface for a week or two (and perhaps even longer given the extensive benchmarking TH does as part of their standard review). Andrew Ku's two part review that covers everything from Windows RT, chip performance, browser and display benchmarks, battery life, and much, much more.

Some highlights:

"Thus far, though, we've generally regarded tablets as toys. Well, perhaps not toys in a literal sense, but we typically use them around our houses for playing mainstream games, browsing the Web, listening to music, and watching video. Those are all very common tasks, but they aren't productivity-oriented...Tons of me-too products have found their way their way through our lab. The Nexus 7 was the one we liked most. But it remains a pure tablet. Even if it's more comfortable to hold than a big 10"+ model, more affordable than anything Apple could conceive, and part of a mature software ecosystem in Google Play, there are certain things it just doesn't do...And then the Surface dropped into our lab...Suddenly we had many of the luxuries we enjoy on the desktop. Only, we were using a tablet. Wait, whaaat? It immediately became possible to do things and work in ways that simply hadn't been possible previously."

"With the few things we dislike aside, we continue to be bullish about using Microsoft's Surface as a replacement for the Ultrabooks and MacBook Airs we carry around with us to trade shows and meetings, along with the tablets we use around the house when we get home." 

Full review here:
Part 1: Performance and Display Benchmarks
Part 2: Battery Life, Multi-Monitor, and More