I'd go for it...I have had good service from some cheapo stuff. Wouldn't rely on it if my job depended on it, but for occasional use it's hardly going to break the bank (so don't try to do that!).
I bought some Ferm gear many years ago (remember them?) and the cordless combi drill/driver 24V was a great workhorse. Used it for years, but eventually the 2 supplied batteries gave out and wouldn't hold a charge. It cost very little to buy so was excellent value for money. It was heavy though, and more modern ones are far superior, but for the money it was an excellent buy.
I also had a Ferm SDS drill, indeed still have it after probably 15 years, and used it the other day and it is great. It has done a lot of screwing, drilling, chiselling and setting of coachscrews and multi-montis, and at £49 I consider it a real bargain. I wouldn't rely on it if it was the main tool for my job, but at the price I cannot fault it.
The Ferm wood planer I have is also about 15 years old, blades are easily obtainable, and it gives a good finish in lots of timber types. Again, it cost less than a lunch out. I guess if you are looking for occasional use, these cheap tools will do all you want them to, but I wouldn't give up my DeWalt trio which I rely on all the time. Also got a cheap combi drill/driver from Aldi for my holiday home where it obviously gets not much use. At £38 it has done all I need in timber and the stone walls and aluminium railings etc and comes with 2 batteries which are only 1.8ah each but they have been enough for such use. I couldn't justify the high price tag for a duplicate DeWalt just for it to sit in the cupboard most of the time, especially when a spare battery for them costs more than the Aldi drill.