I bought a 2010 Jetglo 4003 about 3 months ago & i have to say that i adore it.Before the Ric,i was playing a Squier VM which as you know has a very slim neck & suited me just fine as i have small hands (big feet).The Ric's neck is approx 5mm wider at the nut,but i've had no problem adjusting to it at all.Mine happens to be light as a feather.The tone is something else too,growly & punchy which is perfect for what we play (Space Rock & Punk).However,they're not for everyone,but then what bass is?!! Rickenbackers seem to raise the blood pressure in people wether you love them or hate them.
My best advice would be to try one out first.Spend a good hour with it.Play it sat down,standing up,upside down,inside out,...you get my drift.Never trust someone elses opinion as instruments are very personal & individual creatures...make your own mind up....If you like it,buy it...if you hate it,don't.....Simples!!