Just be prepared.... It takes a while to get used to! Make sure you get a screen cover.... Also after a while a second coil will be needed....maybe an 8" Minelab and a 5" or 6".... (Sunray x-5 or 6" Excelerator)

Lots of great support across the forums... Have you tried your friends Se? If so that helps...
The first few times I used my Se I thought ...wow these sounds sure are different than the Dfx.... But as others continue to tell me learn the tones more than looking at the screen great advice! I have really focused on the digital numbers with both the Se and Dfx... I did learn the tone id on the dfx and used the digital numbers as a back up....
Now finally I am using the smart find screen on the Se and starting to use the digital readings as a back up..... I have been taking it very slowly ....
My main advice with the Se would be to swing extremely slow.... After I use the dfx for a hunt usually takes me 10-15 minutes just to slow my swing down and get in rhythm with the Se on the next hunt ....