Has anyone used this site? I'd like to know if most sellers would adjust their prices accordingly as the value decreases, currently it seems many are just the previous price. Guess I'll have to give a few more days.
Used it many, many times. It is exceedingly popular. Sellers list based on an exchange + X percent, so it depends on the seller in question. If you aren't in an urban area you may have less access (if any) to sellers, therefore they may ask for higher prices. But as BTC drops or raises on Stamp, the prices should reflect it (as they are Stamp + X% based, for example).
You can do the same and list a buy ad with your requested value based on exchange rate (the rate you enter will be tied to an exchange). You aren't bound by entering a buy or sell ad, it's simply a way to mark interest. With this site you can communicate with buyers from across the nation who offer other methods of purchasing or selling coin in the event a local meetup is not possible, such as bank deposit at a local branch.
I wouldn't recommend the escrow there, however. Nothing better than an in person meetup.