yeah...you can get longer than 2 sec.  As you scroll thru presets...some go up past 8 secs or so.  I'm sure some longer too.  I find the upgrade pricing a little steep.  It is nice for all the features in one unit...and the 5 IR you can load...but that almost might seem excessive in many cases (IOW, do you have to go "that far" to get a great sound?)..  I normally set up about 3-4 reverb busses anyway as a minimum, and that is kinda similar without dropping the $189 upgrade.

There was a group buy last September. Even with the poor user IR management @ $99 the full version is very nice.

yeah $99 is a fair price.  Actually, I've been doing an amount of shootouts with various reverbs and finding the stuff like Breverb and ReMatrix solo can do quite well.  Stacking them up against stuff like Valhalla, and TO ME, I was able to duplicate a lot of settings.  Stuff like Valhalla seem quicker to sound good, but Breverb I think as is ReMatrix solo...are both underated....  maybe not??

scook
There was a group buy last September. Even with the poor user IR management @ $99 the full version is very nice.

I just bought waves silver with a convolution reverb in it for $99 :)
Having said that I'm having preset management issues with this IR-L plugin now... Wonder if it was the same developer who wrote it? hahahaha!

I prefer to use things that came with SONAR for ease of use, but one (free) convolution reverb I grabbed when mentioned in this forum quite a while back was HybridReverb2 (VST2 32-bit). In came in second for KVR's developer challenge for 2009, and although the GUI is simplistic in some ways, its ability to manipulate the reverb drills down a lot deeper than any other that I own. For being free, it is an immensely powerful effect.
 
Edit: I just reinstalled this because this thread had reminded me. I forgot it only comes in 32-bit. It actually does an interesting system benchmark after installation as well (would sort of be nice if all VSTs did this!). On my machine the "predicted CPU load" running 4, 2-second IRs is just over 1%, which is a pretty light hit for a convolution reverb.