Harrison, I've only seen photos of the Lindbergh JU87, and it looked a bit basic compared to more modern kits. But, it is an old kit, and with a bit of work, can probably turn out quite nice. But for $7 for the two, it's more than worth it - in the UK, that Dornier kit is around £27, about $45 or more!
Dirk, Airfix kits were once excellent, in general, and many still are. However, as the company has been taken over a number of times in recent years, their products, and reputation, are a little inconsistent! Some of the very old (early 1960's) 1/72nd scale kits have been re-released at 'modern' prices, which annoys many people, and some of their better kits have been withdrawn, probably with the moulding tools sold off to other manufacturers, for example Eduard. I think it's a case of a little knowledge being useful before purchasing a particular kit, as it depends on the era it was first produced. The early 1980's saw some exceptionally good 1/48th scale kits for the time, which still stand up well against todays products which use advanced moulding techniques. The Tornado F3, however, is not one of their best offerings, being inaccurate in some areas, with extremely poor fit of parts, and some main components obviosuly produced separately (as 'modifications' or 'additions', to change from the GR1 to F3) elsewhere. These are in a completely different grade and texture of plastic, where the poorer grade has raised detail, and the 'additions', in this case a complete fuselage half and specific-to type parts, has recessed detail and better plastic. But, being fair, with a lot of work, the kit does produce a nice looking Tornado F3 and, at the moment, it's the only one around in this scale.(Hobby Boss have announced one)
For people of a 'certain age', in the UK at least, Airfix is, in a way, part of their 'heritage', and part of growing up. The company produced its first commercial kit in 1952, so there are many, myself included, who have literally grown up with Airfix kits, first as 'pocket money' toys or weekend passtimes, then growing into a serious hobby, and this was long, long before the rise of the 'new' companies such as Hasegawa, or some of the other (now) market leaders. So, it's a bit of a mixed reaction for Airfix, where some, and again I include myself, will defend criticism, but at the same time criticise, due to the recent poor showing of the company since its acquisition by Hornby.
The bottom line is, Airfix kits, in general, are more than acceptable, with some equalling the newer 'big boys', but one has to know what one is buying. To that end, if there is a particular kit you're interested in, ask me, or others and, if it is known, or there is experience of the kit, then the details can probably be provided.
Sorry for the long reply - back to the thread!!!