Not too expensive and hard to beat for value for money.
Anything that comes with a service diagram (with part numbers for ordering spares) is better than something that doesn't. If the manufacturer believes that me, joe punter, is capable of taking it apart and putting it back together it has a hope of being reasonably well made.
I've got the 5/6 size because I bought my whole fly rig as a set second hand, but after all ITS JUST AN EFFING BOBBIN TO KEEP LINE ON so you can go down to 4 weight or up to 7 weight.
Good value, from a company with an amazing reputation for customer service. I honestly cant see myself buying another one in the foreseeable.