Opinions wanted: Which system?

I am sure that some of you have installed one of these systems or the other and have some opinion about whether you are pleased with the product and results. There may even be a few of you that have done both. Any pros and/or cons you'd like to offer on either system would be appreciated. Scytek Astra 4000RS-2W DesignTech Air Wolf 20099 If you don't mind, please keep the discussion to these two systems. I don't want this turning into an argument about why the Viper 791XV is better than everything else. I would only be interested in that discussion if you are willing to pay the difference for me. Thanks!

I did do a search on both brands and came up with little info on installer impressions. There were a few threads that were vehicle specific and maybe a couple about possible defective brain units. Both fit the following criteria as far as I can tell: 1. <$100 2. 2 way paging lcd units 3. remote start 4. security and keyless entry These are the key requirements I'm looking for. There doesn't seem to be much out there that fit these requirements AND have at least a somewhat positive reputation. If there are others that fit these requirements that I've missed, feel free to chime in.