A month of use, probably not enough to issue a serious opinion. However this is consistent with my expectation, flexible and responsive with its numerous security settings and operation. Equipped with original Windows 7 Pro he admits some of my old XP programs. Finally aesthetics, certainly a little high in relation to the purchase of a hardware before any utilities, also satisfies me by a simple elegance and a reference to the strength of interposed metal background. Help to work and inspires confidence, fulfilling its role. I ordered the referenced herein 4520s but the 4530s, which was delivered to me after agreement with the broadcaster. HP ProBook 4530s - Core i5 2410M / 2.3 GHz - 4 GB RAM - 500 GB HDD - DVD ± RW (± R DL) / DVD-RAM - Radeon HD 6470M - Gigabit Ethernet - WLAN: 802.11b / g / n, Bluetooth 3.0 HS - Windows 7 Pro 64-bit - 15.6 "Widescreen LED backlight HD ANTIR ...