I`m a newbie and the Coinstrike is my first MD.The good points I like about it are:
1) target id locks on to coins really well
2) menu easy to use
3) hip mountable
4) pinpoint is dead on
5) deep unit
6) Good in iron
things to get used to (bad points)
1) uses 9 volt batteries
2) will id junk as good (but if you do your 90 deg.it will id as junk)
3) interference from power lines(turn down sens)
4) Takes time to get use to, its not a pick up and go machine.
My advice is to really do some research on any machine you are looking at getting. Take in consideration as to what you are going to be hunting. This machine works great on Round objects. Rings, coins and those annoying bottle caps. LOL The 5 inch coil is a must for trashy areas.
Good luck and HH!