I acquired a vacation home with a two panel Lutron Illuminations system installed, circa 2009. The system only controls lighting and ceiling fans (no shades, HVAC, etc.). Mix of single light controls, seeTouch keypads, and several grafik eye controllers. The system is horribly unstable, which is inconvenient for me and really a problem for the vacation rental company that manages renters while I am not there. Some -- but not all -- of the seeTouch pads will go out completely with waterfalling leds, leaving me unable to turn some lights on or off at all. Some single load switches don't work at all or are stuck in the on position. I cannot reprogram or control lighting remotely, meaning I am stuck with the lighting combinations and timed on/offs set by some guy 10 years ago. Etc etc etc. Lutron dealer who has serviced the house repeatedly advises that the processors are unstable, the programming files are corrupted (and not fixable by Lutron -- he tried that), and that I am going to continue to have problems unless I upgrade to QS. Let me say first that I believe I will continue to have problems and that he is very knowledgeable and has been great to work with. The house is ~8000 sq. feet if you count porch area (which has lights and fans, so it counts). Lutron customer tech support (not so helpful) rules out a Lutron solution other than the QS upgrade or searching eBay for a legacy parts to fix mine (seriously?!?). I have three questions which I am posting here because the legacy board next next to no traffic at this point:1. I see a fair amount of problems with QS based on the threads here. Is QS really any better than Illuminations was in terms of longevity and reliability? I keep being told that these system have long life spans. Mine didn't, so I'm skeptical. Vacation renters need to turn the lights off and on. Mood setting scenes are not really a value-add. Lighting doesn't drive my moods either, but inoperable lighting sure does!2. My guy presented two options. One replaces the processors, reuses all of the keypads, and makes the updated system work via bridges and software licenses. That's ~$20k. Option 2 replaces every component and completely updates to system to new QS gear. Effectively doubles the Option 1 cost but is presented as the best way to bulletproof the system for the foreseeable future. Commentary welcome on these choices from anyone who has led someone through the before. Remember that the cost will be higher here because problems with the existing file will require a manual mapping of the system for either option (he has to pay his people, I realize, and this is a time consuming process).3. Anybody ever had a customer just rip it all out, free themselves from Lutron captivity, and look to the much wider and ever expanding variety of non-Lutron wifi enabled controls to get some of the group lighting features back? Reasonable to assume a rewire of the house with traditional wiring will be north of $100k these days? I don't want to waste an electrician's time on an estimate if someone here has already seen that movie and can tell me it ends badly.Apologies for the post from a non-techie guy just looking for advice.