I had a Treo 600 over a year ago. If you're using it for business for sending/receiving emails and taking calls, I wouldn't recommend it. The GoodLink Service is horrible. If you're sending/receiving email and someone attempts to call you, theres a 99% chance that it will go straight to your voicemail. Or if you're on a call, email will not come through. This phone may be alright though if you're just using it for personal use. Just don't drop it, it can be easily broken.