Depends on your tolerance for optical quality and focusing performance. A super-zoom is a super zoom. They can build them lighter and faster, but can't change the laws of optical physics, so they will always remain slow and of sub-average image quality. Also keep in mind, the larger your autofocus, generally the less time your battery will last. Powering the autofocus motor (aside from igniting the flash) is the most taxing thing your battery does.
DP review says...
Conclusion - Pros
Remarkable 15x focal length range
Impressive image quality in the normal to short telephoto range
Excellent resistance to flare
Effective vibration correction system, at least 3 stops benefit
Reasonably compact despite the long telephoto range
Conclusion - Cons
Slow and occasionally indecisive autofocus
Geometric distortion across much of the zoom range
Significant chromatic aberration at wideangle and telephoto (especially 270mm)
Macro performance rather compromised (very soft at F6.3, focus shifts on stopping down)
Uneven zoom action, zoom creep when not locked
Slightly sub-par build quality