I bought two of these 12 inch PA speakers for an old powered 0.75kW rig, and I agree with all the other reviewers, these are great little speakers :-)
The bass frequencies are clear and not "muddy", while the high frequencies are not "piercing", overall a very pleasing frequency response. In fact I was happy to discover that my 750W PA wasn't strong enough to cause these 8 Ohm speakers to distort.
Of course it's unrealistic to expect chest thumping bass from these 12 inch speakers ... and that's perfectly ok, at this price and specification they're not designed to do that. However with proper EQ you can push them a little more ... otherwise consider the 15 inch speakers plus sub-woofer instead.
They handle very well, with large handles making them simple to carry, and they are surprisingly light. As others have said, I do worry about the material on the corners tearing. I recommend you attach metal corner protectors if they're going to be bump'ed and banged between gigs.
I did get an opportunity to use them at a venue which featured a venue with a very high ceiling - the ultimate speaker test ... and it passed without issue, nice sound dispersion.
For small-medium sized gigs these 12 inch speakers are great value for money.