Translation of überaktiv

Yes, as usual, if you don't see me on messenger just drop me an email. And yes, your sentence is almost perfect, but I would like you to refer to it as lower end... so maybe there are similar words to 'enrichment' and also you could use the negative form.
Could you please read the following offers in a critical manner and confirm it before I will send it? I have also mentioned the warranty and the software in the offer, because it was requested by the customer.
If I'll have the time, I will visit sometime, perhaps you can write me an email in English. I will be correcting it and hope not to discover any errors there. In which city do you live?