Ice Cream Sandwich is the OS of choice for the TF300, and Asus hasn't opted to tweak the standard offering too much. The home screen is unmistakably Android, and anyone familiar with Google's mobile OS will instantly be at home.
There are a few proprietary apps and widgets you can use, but the vanilla experience is genuinely refreshing after you've spent time using HTC Sense or Samsung's TouchWiz, both of which are serviceable, if needless, skins on a solid and simple OS.
The TF300 scored a staggering 9623 in our Antutu benchmarking, which is vastly superior to any of its rivals, bar the Asus Transformer Prime.
Many dual-core tablets we've tested have lagged slightly in the OS, and even switching between home screens lacks the buttery-smooth feel which we admire on the new iPad, but there's no such dip in responsiveness here.
3D gaming also scored highly in Antutu, which was reflected in our real-world gaming tests. It's head and shoulders above any of the Android tablets, and we weren't able to find a title that tested the limits of Tegra's power.
We played endless games of Temple Run and Riptide GP with no sign of slowdown, and enjoyed enhanced graphical effects such as splashes and drips, thanks to the Nvidia Tegra 3 chip. The Tegra Zone also has some excellent titles, exclusive to quad-core toting tablets.
Navigation through Ice Cream Sandwich was also seamless and smooth, and the TF300 rarely paused for thought, although we did have issues with some strange noise to the left of the screen. A couple of apps fell victim to this, but this disappeared after an over-the-air update in the Settings menu.
Great performance is nothing without longevity, and we were keen to test the TF300 to its limits. We streamed a HD version of Kanye West's Runaway video (a stress test on the senses as well as the battery) for 416 minutes before the Transformer TF300 finally gave up the ghost.
At nearly 7 hours of HD streaming, the Transformer is one of the best performers on the Android tablet scene, and longevity is boosted even further when connected to the keyboard, with 12 hour's use easily achievable.
If you spend a long time on the move, you won't find a tablet capable of delivering this kind of battery performance elsewhere. Streaming HD content would also require a large proportion of Tegra's power, and in normal use, we found we could eke days of light use, thanks to the 'fifth' power saver core.
The 8MP camera was also one of the best we've seen on a tablet, and while we'd never be seen taking a photo in public, quality from the f2.2 lens was passable. Colours were well represented, and focusing on subjects was easy.
You can even take panoramas, something that's been turned off on many ICS slates. We would like to see more options of photo manipulation on tablets, which would justify taking them on such a large size, but the Transformer only performed the bare essentials.
You can also capture 1080p video on the TF300, and Ice Cream Sandwich has a host of cool and funky effects, which enables you to get creative with your films.
The built-in speakers can be turned up to a fair volume, but the sound was tinny and harsh, and at maximum level we found there to be a substantial distortion. This made listening back to music and YouTube videos uncomfortable.