I don't think you need to be a professional to appreciate the quality of Milwaukee tools. My Super Sawzall is more than 20 years old, but has always been a pleasure to use. Has a good heft to it, and the lack of vibration is almost amazing compared to others I've used (Makita, etc.). Even though there may be long periods of non-use (as in more than a year!), it's nice to grab it and attack any project without worrying about its dependability. Thing is bullet-proof, even though I often use mine to cut steel pipe and framing members with nails in them.
I've only had one DeWalt tool, a corded VS drill--it had a good feel, and worked well, but lasted less than 5 years before needing some serious attention. Tool repair place said the motor needed rewinding, and the chuck was worn out. They took it in trade towards a rebuilt Milwaukee angle grinder that was talking to me.