Early next year it should be safe to use.
https://github.com/OpenBazaar/OpenBazaar/wiki/Development-RoadmapRoadmap and Timeline
Beta 1.0 (August 31):
Generation, signing, and verification of Ricardian Contracts.
Generation, signing, and broadcasting of 2-of-3 multisig.
Reputation Pledges, a proof-of-burn implementation for bootstrapping trust.
Ability to back up database.
GUI to manage these features.
UPnP port mapping support.
One-click .tar.gz backups of the database and keys.
Beta 2.0 (September 30):
Multiple bug fixes.
New feature: "Add Node" by entering Store GUID.
New feature: Shutdown from within the web client. (Settings > Advanced)
New feature: Web port is now randomized by default.
New feature: Automatically opens preferred web browser by default on start.
UX-Upgrade: stores on home page are now scrollable.
Tests converted to formal unit tests, travis integration.
Code reorganization, normalization, cleanup, refactors.
Debian binary now lintian error and warning free.
Compatibility and stability improvements in configure.sh
Search improvements
Beta 3.0 (October 31):
Emphasis on increasing unit testing coverage significantly
More pricing options #123
Direct transactions #121
Add location to contract #104
Edit contracts
Block store
Windows build
Refund buyer
Automated installation testing #630
Improved notary selection
Simple arbitration system
NSFW tagging and search filter
Namecoin integration
Shipping address improvements #433
Network stability improvements (fix zmq errors)
Beta 4.0 (November 30)
UI and UX overhaul (Mike's changes)
Reputation network (WoT)
Reviews
Tor integration
Instant messaging integrated #192
Login and password protection
Search improvements
Ecommerce tools (import products from other platforms, integrate with commerce tools)
Private contracts / Private stores
Add donation option (Tips to notary and/or dev team)
Future releases
Simple installation on all major OS
More Contract types
Detailed arbitration system
Support for auctions