First of all dear "goldstone" , welcome to this Forum, my friend!
As several members here already know, I am a professional modeler here in Brazil with more than 20 years of experience and during this time I have built all kind of kits that you can imagine, from ACE Models to Zaco (in alphabetical order!).
The quality of the Brazilian kits can be considered in a very nice level nowadays, of course a little bit lower compared to the Japanese brands in some aspects, but in a general point of view I rate the Brazilian brands on a top quality level.
I think that you were very lucky to have purchased first the Wolf 1/20 Copersucar F5 and NOT for example the Wolf 1/20 Arrows A3 (of 1980 or 1981) that feature a very loooooong front wing in the sytle of the IRL cars!
Besides it, you can be considered as a very lucky man too as you did not purchase the most recent release of Wolf, the 1/20 Footwork Porsche FA12 as it looks like a Formula 3 car, strangely a very short car, or even the Wolf 1/20 March 821 with its "smashed looking" front wing...
Anyway, I am not here to criticise the Wolf kits but to help all the other members of this Forum and the truth has to be ALWAYS ABOVE everything!
I have built ALL the ACE Models kits and I can assure you that what you see in the box when you open it does NOT reflect what it really is as these kits are very detailed ones, and the most important of all (in my opinion), the projects are all very accurate, from the resin casting to the decal sheets featuring a very nice final looking when the model is built on the shelf. ACE Models kits are well known worldwide due to their accuracy! Of course, as all resin kits, they require some extra and careful work (adjustments) compared to the plastic stuff but as everybody knows here at this Forum, resin kits are NOT a work for beginners...
As Wolf and ACE, the Red 5, Iritani, Alfa Models, Orange House and RTN kits are all manufactured here in Brazil too and all of them always face several technical difficulties that, in my opinion, raises the value of these products and as I mentioned before, the Japanese brands require a lot of extra work too like adjustments and tests in order to achieve a satisfatory final result. When the modeler gets some extra experience this work becomes a real challange and this is the best part of all!
As mentioned before, for me, the most importany in any kit that is produced worldwide is the accuracy of the project. Have you all seen what happened to the Fujimi Ferrari 126C2 kit ??? This long awaited product features several big mistakes which forced some other manufacturers to release their "transkits" (and thanks God they did so!) to correct the mess Fujimi did!!!. It makes no sense to have a beautifully injected kit with tons of photo etches and bright metal parts when the whole project is a crap! This is really disgusting!
My dear "goldstone", I hope that you like your Wolf 1/20 Copersucar F5 and if possible please share with all of us from this Forum your assembling work as soon as you start to assemble this item as I am sure that it will be a pleasure for everybody from this Forum to follow your work!
In time: where are you from? I noticed that you wrote "Brazilian kits" with an "S" = BRASILIAN which makes me fell quite sure that you are from Brazil as this is a very common writing error from all BraZilians!!! Maybe we are neighbours (is it possible that you live at Grajú City your FDP???) or maybe you only opened this topic here to write bad impressions about the ACE Models kits which makes me feel nearly 100% sure that you are linked to Wolf kits... It is VERY strange that someone that never built a resin kit before starts exactly with a Wolf kit from Brazil and how on earth with no experience with resin kits you can write bad impressions about ACE kits if you never ever purchased one of these kits before? Just asking and... it would be nice to read your comments on that!
My very best regards to you!
Sandro
Since I know how this kind of topic usually ends up becoming, I have prepared my own worm can image to use it when it is suitable!! 
no matter what side they come from.
