I wasn't involved with the installation process of Propellerhead Reason 4 as it was already installed on the machine that I have run it on.  Although I can't say anything about installing it, I do know that there haven't been any problems running it since I have been using it.  The interface of the software is reminiscent of Reason 3.0, but in general it looks a lot more modern and there are a ton of new features to play with.  I find that it is overall easier to use than 3.0, but it did take me a little while to get used to the switch.  The manual for the software is put together well and is definitely helpful to have around when learning how to use this.

SUITABILITY/PERFORMANCE

I have used Propellerhead Reason 4 on an Apple G5 desk top that usually runs with a Pro Tools HD system.  This is a very powerful set up and is more than capable of running this program.  If you are running a lesser system, it may vary on how well this runs on your system.  It really just depends on your personal set up, but if you are running Reason 3.0 or another sequencer in the vein of Reason already, I think that you should be able to run this software without a problem.


OVERALL OPINION

Overall, Propellerhead Reason 4 is a lot better than 3.0.  If you aren't familiar with either of these, Reason is overall a very powerful piece of software and is an almost perfect all in one stop for making MIDI music.  The sounds are quite realistic and varied and of course you can always make your own sounds and import them into this.  My favorite feature of Reason 4 when compared to 3.0 is the addition of the arpeggiator as you can really get some interesting tones with this.  The price of this version of Reason I believe is the same as it was before, but this time around you are getting a lot more value.  All in all, if you are looking to get into making music with MIDI, Reason 4.0 is one of the best sequencers that money can buy.