Alight my SDS100 has just died out of warranty & I am deciding weather to throw more money at it or give the trx-1 a try , As far as I can tell the only thing I would really be giving up to the sds is the simulcast reception , bummer to lose that , but then it seemed like it was the only thing my sds was good at , when it came to conventional air & marine , it was not good , What I am interested in is ease of use ,can I quickly scan just what i want easily ? Durability do you feel the TRX-1 is delicate or tough ? I have browsed the forums here briefly & dont seem to see alot of widespread issues , And what about support , how long do you think the radio will be supported ? how often are firmware & database updated , If you have had a TRX-1 for some time now , How has it aged ? Is it just as good as when you got it ? would you recommend buying one in 2021?