My 123 is a mere 25 years old. It is a replacement for a 8R which rusted out after 15 years. It was the same stove guts in a square metal box. Been through a lot of use and has heated many a meal and still works well. I use a dropper for priming fuel and have never had to do dittiley to it (maintanence wise)Basically now it is a back-up stove I pack on longer trips. My primus Himalayan multi fuel is a 1000 HP jet engine compared with the 5 HP outboard Svea.