Most of the time I build 1/72 scale and have had a love/hate relationship with both Airfix and Revell since the late 1950s/early 1960s. In those days, both put out some real dogs (anybody out there remember the Airfix Mig 15, the Bf 110 or the Ju 87B or the Revell P 51D and FW 190A? The closest they came to the real aircraft was they had the proper number of wings, engines, props and wheels). But they were the only show in town and were cheap, so thats what we learned on.
Today things have changed somewhat, but I continue to buy and build Airfix kits. Why? Well, there are a couple of reasons.
1. There are some Airfix kits which with a little work (I know, a lot in a couple of cases)
can be turned in to very nice models that Tamigawa hasn't seen fit to release. Where else do I find an HS 123, a Stirling, a Hudson, a DO 217E or a J2F5/6 in 1/72 scale? Tamigawa seems to prefer to re-release its P 51/SBD/Hurri/Zero/BF 109 kit about every 9 months with a new decal sheet and new box art rather than give us something new and unusual.
2. Cost. I tend to be tight on how much I spend on a model (and my wife is tighter than bark on a tree, to her its only a sale if its 80 percent off list) so I tend to get heartburn at the thought of spending upwards of 25 bucks on a 1/72 single engine fighter kit. (just about any kit for that matter). If I feel that, with a little work, I can make a model from a 5 to 8 buck kit, that is just as good as I could build from a 15 dollar kit of the same subject, guess which I'm going to buy. Another problem I have with Tamigawa is they seem to feel that each time they re-release the same kit, they need to raise the price of said kit 3 to 7 dollars (for which I can buy a set of after market decals for several other aircraft)
Sorry about the ranting, I guess my advice to you is to go ahead and try a couple that have been recommended to you (or just cause you want them). If you decide you don't like them, then don't buy any more. The biggest thing you have to figure out is what you are comfortable with. And always keep in mind:
There Ain't No Such Thing As A Perfect Kit!
lol