I have a Ace 250 now and I use to have the Musketeer Advantage.I still have the older Musketeer Colt. I guess The Musketeers detectes deeper then the Ace250, but I couldn't tell the the good signals from the bad signals unless I really raised my disc up.
My entire Musketeer Advantage outfit was stolen from me before I could really get the hang of it. Shortly after that I bought a used Tesoro Toltec 100 and fell in love with the ID meter. That taught me so much about how detectors process different signals, Alas,,,the Toltec has a problem and since I'm not the original owner I 'll have to pay to get it repaired. Then I barrowed a Ace 250 from a friend and just love it. I was finding so much more then I had with any other detectors that I have I used. I'm finding more keepers but not as deep I think. The learning curve is a little harder for the Advantage but once you master it you should do rather well with it. You'll be amazed with it as you pull a old rusty bottle cap from 10 inches in the ground. I know I was. But I also found my 1st silver coin with the Advantage the first day I used it. My friend has barrowed the musketeer colt and we're both happy so I do believe we just traded detectors.
Good luck and welcome aboard.