I can't say as I've heard too much about SymTech (I live in Canada as well - Calgary), but I know lots of people who've opted for other options paint-protection add-ons like DiamondKote, etc. Most people I've talked to seem to be reasonably satisfied with them. As far as upholstery goes, if you eat/drink a lot in your car, it can be worth it. Electronic rust protection is really only worth considering if you live in a coastal region, and even then consumer reports seems to say it's not really worth it anymore (only because the quality of paint and rust-protection out of the factory is so good these days). It does work and the basic science has been around for ages though.
The best thing you can do for paint and keeping a showroom finish is just a bit of care and wax. I've always waxed my cars/bikes and it definitely makes a huge difference in the long run. I do it a little more in my bikes because it's quicker/easier than doing a whole car, but 5 years on, my bikes still look like they belong in a showroom. Just about any 'ol wax will do - I've personally use McGuire's (just make sure your car is very clean before applying waxes. The other option is getting a body-shop to re-do the clear coat every 5 or 10 years. A friend of mine swears by this, but needless to say his 10-15 year old car looks brand new (from the outside).
But nothing's more satisfying than a nice glossy finish from an afternoon of waxing in your driveway.
The best thing you can do for paint and keeping a showroom finish is just a bit of care and wax. I've always waxed my cars/bikes and it definitely makes a huge difference in the long run. I do it a little more in my bikes because it's quicker/easier than doing a whole car, but 5 years on, my bikes still look like they belong in a showroom. Just about any 'ol wax will do - I've personally use McGuire's (just make sure your car is very clean before applying waxes. The other option is getting a body-shop to re-do the clear coat every 5 or 10 years. A friend of mine swears by this, but needless to say his 10-15 year old car looks brand new (from the outside).
But nothing's more satisfying than a nice glossy finish from an afternoon of waxing in your driveway.