In My opinion the AGB 140 is one of the best basses you can get - and not just for the money either.
I have a 51 reissue Pbass so I can compare it with that as the closest reference.
Downsides - or maybe not depending on your playing style !
The Ibanez is MUCH longer, you really need to reach for end of the neck and it is a bit neck heavy as with a lot of
semis. The action is fairly high too. I'm happy with this on all counts, It suits me fine.
There is not much in the way of tonal control - your jag will be coming down with that stuff - vol and tone controls only,
but they work fine and the tone variation is quite noticeable. They're not just as powerful as the Fender. Try and get one with a case, they are outsize and a gigbag is a waste of time - it sticks out the top. Got a case from Thomann for £60
Upsides
They sound truly excellent. I bought the AGB as a backup to my Rick 4003. I bought the ASB in the states (you cant get them here) a year later on the strength of my experience with the first one and sold the Rick! But as with most thing its a matter of preference on the sound. I play with flats and I'm looking for a 60s vibe, but they're versatile enough for anything.
It is pretty well put together, nice finish and the binding is well done on both my AGB and ASB.
I've been working them pretty hard too, the AGB for 5 years, the ASB for 4 with absolutely no quality control issues, not so much as as a loose nut or crackly pot. Always comes out the case in the same tuning as it went in, and will hold that for a hot gig.
Honestly give it a go - I guarantee you wont get a better instrument for the money
Check myspace www.myspace.com/thelaynesuk or myspace.com/berrytweedandthechasers
ALL the songs are played on the ASB, just with different tones od played with a pick rather than fingers, - but thats just a matter of preference - it sounds identical to the AGB. There are a couple of youtube vids as well. one of the Berry Tweed ones has a good bass sound on it, its the one about 8 min long.
Theres one on Gumtree Glasgow today for 150 quid - be a devil.