Used pressure barrel's for year's. I started with bottle's back in the 80's, soon switched to a beer sphere, and roto keg. Now i use a couple of king keg's, and a couple of the new wide neck wilko barrel's. Bottle's are just to much trouble, and i prefer the taste of beer dispensed from a pressure barrel. The new wilko barrel's are great value, as long as you fit a schrader valve in the lid, and change the rubbish tap for a king keg style tap as soon as you get it, also change the seal's on the s3 valve total cost less then £10, and you will have a very good barrel. The only negative's are the tap is set to high, and the lack of decent handle's. The king keg's are ok, but you have to do the same mod's on them apart from the tap, and they are nearly twice the price. I see lot's of post's on various site's complaining about leaking barrel's, and barrel's losing pressure i used to test high pressure steam boiler's for insurance inspection's (and you cant have a leak on one of them, unless you want to demolish a building) before i put beer in a new barrel i fill it 2/3 full with water, apply PTFE tape to the thread's on the lid, make sure all seal's are well, but not over lubricated with vaseline, then pump air into the barrel via the schrader valve to 10psi, then leave overnight, and test the pressure with a tyre gauge if it's held the pressure. i will use the barrel, if the pressure has dropped i will pump up again, and test for leak's with washing up liquid foam. 99% of leak's will be from the lid, pressure relief band, injector seal, or the large O ring that seal's the whole lid, i use one of the large plastic spanner's to tighten the lid's down. I have thought about corny keg's, but the 19L capacity, and the expense is a bit of a downer. The advantage over pressure barrel's is early drinking beer, and cheaper CO2 injection system.