Quite happy with mine.  Stock iron wp, 180 degree t-stat, 3 row copper/brass radiator, SPAL 30102082 fan in a shroud I built, running a relay setup I also built.  Not noisy at all, can barely hear it over the exhaust anyway.  To each his own, but I simply consider how many new vehicles run a mechanical fan.  Maybe there are still some trucks, but even my '06 250 has an electrically operated fan clutch, so it isn't truly a mechanical system.  The older aftermarket electric fans were mostly junk.  We ran them, we hated them, they failed.  Something like my SPAL is OEM quality.  Its been on my car for several years now doing nothing but keeping it at the right temperature regardless of outside conditions.  Truly one of the better mods I've made, probably only second to my auto to manual swap with a T5. 

This may not be a popular opinion, but I don't like electric fans fitted to older cars (hate them with a passion actually). I am yet to hear of one without problems. Maybe I have only heard or seen the bad stories, but I don't plan to ever fit one. I might be talked into a mechanical clutch type fan, but at this stage, "it's a no from me dawg" for electric fans.

Working on my 2nd one in 15 years or so.
I did find out recently......."if it ain't grounded, it won't suck air!"  That's all I got to say about that!
6sal6

If you look at post #25 there's a schematic that does not use a computer or Arduino. That would probably be the simplest iteration. I wish there was something noted in that thread on how many amps the controller could handle, but there isn't. And while I think DIY like this is awesome, I'd just as soon go with a controller from https://www.autocoolguy.com/ that was mentioned earlier on, I am actually thinking about dumping my original plan and using one. No relays to mess with at all, just wire it and go.

Raymond_B wrote:

If you look at post #25 there's a schematic that does not use a computer or Arduino. That would probably be the simplest iteration. I wish there was something noted in that thread on how many amps the controller could handle, but there isn't. And while I think DIY like this is awesome, I'd just as soon go with a controller from https://www.autocoolguy.com/ that was mentioned earlier on, I am actually thinking about dumping my original plan and using one. No relays to mess with at all, just wire it and go.

I did install the Auto Cool Guy controller and started the car for the first time the other day. The controller was super easy to install and wire and works as advertised. Although I think there is a problem with the brand new Derale fan that I installed. At low fan speed, it sounds like marbles are rolling around in the fan motor, and if you use the manual override switch to turn the fan on, it “clunks”’when you turn it on, but on high speed the fan sounds fine.